So.... go train in systems that have no kata or forms... train in systems that only spar. There are plenty out there. If that is what makes sense to you, and you enjoy it that way and see the benefits... then find a system that trains that way.
What I don't understand is all the effort to tear down systems that have forms or kata. If other people train that way and find value in that type of training... why should that matter to you?
I have always wondered why people can't just choose the thing that works for them. For some reason, they always feel this need to tear down the thing they don't choose. Why put in so much effort to go after a style of training that you don't like? Why not just pick the style of training you like and be happy?
If we could take the energy we put into tearing down and proving that another style of training is outdated, worthless, not efficient, not complete... etc and spend that energy discussing, things we have learned or are trying to learn... we would all be a bit better off for it. And if we go the next step, and respect each others styles of training, even though it may not be for us... we might be able to learn from each other and improve our technique. That other style of training may show off and emphasize different details. If we spent our energy looking at how each style focuses on different aspects, and how to bring those aspects into our preferred style of training... we would all be better off.
Yes, you have conclusively proved that forms and kata are old, outdated, useless and not practical for martial arts training. You are right. Now, can we spend that energy discussing things we learn and are learning and how to improve our respective techniques?
Also, please forgive me if I continue to find value in those old, outdated, useless and impractical kata and forms... its a problem I have.