What is important in all training is that there be stress during training that causes growth. How you get that stress can be done in different ways such as Sparring, Grappling, Scenario Based Training and of course more. Not everyone is going to be a UFC fighter, A Violence Professional such as Law Enforcement, Corrections, Bouncing, etc or just a plain bad ***. However, if there is sufficient stress in their training then they should advance and improve. Personally, I have always believed in pressure testing what you do. That is how I was brought up in the Martial Sciences even though I have trained in systems that do not pressure test in a competitive manner. Yet, I also have witnessed people who do not do as much pressure testing in their training perform amazingly well in real violent situations through work and also as a civilian. What I do see is people getting caught up in what I do works and what you do does not. The reality is that there is not a one size fits all methodology of training. This is very evident in Law Enforcement, Military, etc. They typically all use a combination of stress induced training that includes typically some competition, Scenario Based Training, Technique Training, etc. However, some do not. Our Army has included BJJ as a competitive core for moral but not really for the battlefield. The Philippines Force Recon Marines has a form of FMA that they utilize as their core of training for hand to hand and bladed weapons which they have actually used in combative situations. The Korean ROK utilize a hybrid from Korean martial arts with hat we would call a fairly heavy TMA approach to it. Bottom line is I personally have met people who work in a violence based profession from many different systems some heavily in TMA, some in competitive sport martial arts and frankly they all seem to be functioning well in their profession and swear by their martial system.