bolded part isn't true. They do look the same, if trained well. But it's important to distinguish between drills and technique. Jumping rope isn't a technique in boxing, but a jab is. And the jab in application, whether a street fight or a boxing ring, looks like a jab in training.
A scissor sweep is a basic technique in BJJ which looks the same in application as in training.
This idea of techniques looking different in application only comes up when the training stops short of application.
I am speaking from a karate perspective and the applications, in their general delivery, do differ from the movements within the forms.
I was simply stating that although the movements are the same, in combat, the motions can vary and deviate from the original directions. This doesn't mean that I think it turns into sloopy kickboxing. Nor do I think the proper structure is damaged while delivering a strike or techniques.
Do the art, till the art does you.
This is what a tell my current student, do the techniques many times, so that you move without thinking. Teach your body, to catch up with your thoughts.
Also, I do not see the difference between forms and the ground movements of bjj. Correct me if I am wrong but, bjj has a step by step process for learning the techniques from takedowns to ground techniques(a specific pattern albiet shorter)
Katas, forms or whatever you want to call them, follow this same process for stand up techniques and strikes. The delivery of the applications vary from the forms, because forms are used to teach the specific pattern of a technique, not the method of delivery. Thats what application is for.
The forms do not teach the 3 foundations of combat karate, Enter, Counter and Escape. This incidentally, is the key to the success of karate in combat, notice the first one, enter, karate works when you enter. The counter can be one tech or fifty, this of course is at the discretion of the individual. Still, the application is needed in order for the student to truly understand the technique, the entering process, counter and escape.
As I stated earlier, this is purely from a karate perspective.
If you are doing forms but you are not exploring the motions in a form as combative moves, then you are not learning karate forms the proper way.
Karate has an on gaurd stance for a reason.
Karate is not holding your strike out and then waiting for the defender to complete the techniques. When you deliver the strike, crowd the defender, make sure they can execute the techniques in realtime, resist.
Karate is meant to enter, move pass the strike, incapacitate and escape.
Apologies Steve, lol not necessarily directed at you specifically but, in karate there are different uses between katas and apps.