In a way karate becoming sport was detrimental to true karate do as a martial art, in that, you have generations of people and the general public believing that karate is a sport and not an art of self protection. There are many schools that only teach the sport aspect and have little to do with real karate do. These schools do not do justice to karate. It was beneficial in the spredding of karate world wide.
Funakoshi himself did not approve of the idea of karate do becoming a sport. That idea was propogated by his son and Nakayama. I don't know if Funakoshi actually softened the karate that he brought from Okinawa. He did take some of the more practical aspects out of karate. I believe his son and Nakayama made more changes to the kata to make them more dynamic and geared towards sport competition. Taking out practical moves, (throws, locks, etc).
Making karate a Budo in Japan meant making the art more of a way of personal development( perfecting character) and less about defeating attackers with killing blows. It happened with Jujitsu-Judo, Kenjutsu-Kendo, and karate jutsu(te)- karate do. Making karate do a sport was essential for the Japanese masters of the time(post WWII) to make it available to still be practiced in the eye's of the US occupational forces. Pre WWII karate do did not have a sport aspect. At that time the training was geared towards making the Japanese better soldiers for the Japanese empire.(at least on the Japanese mainland) Distancing itself from an indigenous Okinawan art(which had obvious Chinese influences) to a Japanese Budo, and thus making it more acceptable to the Japanese public as well as taking out the more Chinese influences that Okinawan karate has(the Japanese were not fond of the Chinese or anything Chinese),and spredding it across Japan and later around the world. I think that the early masters(post WWII) also realized that making karate a sport would make the US service men want to learn more about karate,(US being a sports driven culture in many aspects).
I don't know I would ever consider Shotokan karate a soft style or less hard style than Okinawan Karate do. The other 3 main styles of karate do have more soft influences than Shotokan. Shotokan is more rigid than Shito ryu, Goju ryu or Wado ryu. They did make karate less jerky than the Okinawan karate. More asthetic. More of an art form and not just a jutsu. Now I am sure that the Okinawans are less than thrilled with what Japan has done to their karate(not that they could do much about it) being that the Japanese ruled Okinawa and the Okinawan had to live by the rules of the Japanese government, but in a way they have to be pleased that karate do has been spread across the world further propogating the art and keeping it alive. The ends somewhat justifying the means.
As far as Taekwondo is concerned it was created as their national sport,deviating somewhat from the original Taekkyon art. I am sure it did not thrill the original Taekkyon masters that their art was being mixed with the Japanese karate and developed into what it is today, primarily a sport. Now, there are still Taekwondo schools that teach it in a more original and self defense oriented art, but for the most part it is a sport in majority. I personally know Korean Taekwondo masters that do not teach any Sport aspect to their art. In fact Korea has a longer history with the martial arts than Japan,Okinawa and even China. According to historians and archiologist, the oldest painting depections on walls are about 5,000 years old from Korea, predating anything by the Chinese,Okinawans or Japanese by about 1,000 years! Most historians believe that the original martial arts were first developed in India,Korea and Egypt,between 5-6 thousand years ago. Now the actual art of Taekwondo being a relatively new art, not actually being called Taekwondo until the 1950's.
Do you think the creation of Shotokan Karate and the sportization of karate was detrimental to the martial art? yes? no? and why?
Talking with a shito ryu friend of mine told me Shotokan is not karate, it's a good exercise and I asked him why? He told me Funakoshi and then his son and nakayama did softhen a little the okinawan karate to make it more apealing to the japan people this Karate evolved into a sport and step by step the martial art was dying and the sport karate blossom.
With WTF Takwondo hapened the same in one point and now as judo and shotokan karate, people are saying TKD is a contact sport more than a martial art, so now the JKA and the WTF are alike in that respect.
I must say that giving so much effort trying to make the Shotokan and Taekwondo a sport for the mases the martial art iltself suffer a little however it was because Funakoshi's Shotokan, the JKS and the WTF TKD that these martial arts are around the world with hundred of thosuands of practiciones and these martial arts are practiced in more than 200 countries.
Manny