It's all about what you personally want from your horse. The most important thing is that you are able to train (or have someone else train) your horse to do the things that you value in a riding horse. And that with your particular riding position you are able to communicate effectively with your horse and also stay on in a balanced manner.
One person wants their Western horse to stop and turn on a dime. Another person wants their horse to gait properly. Someone else wants their horse to perform maneuvers with extreme collection. I want my horses to transition downward slowly with as little stress on the joints as possible. That's because we do endurance and those little things can add up after awhile. So our upward transitions are instantaneous, but our downward transitions would be considered slow by a reiner.
You might value that your horse stands perfectly still whenever you ask. I might not care about that but instead value that my horse is always ready to give me more extension within a gait and will keep on moving out for miles without me asking again. So while your horse might be perfectly trained for what you do, other people might consider their horses perfectly trained for what THEY do. You might not be able to take someone else's horse and use them immediately in your discipline. That doesn't mean the horse is not well trained for something else.
Maybe you can stay on your horse in the position you ride in, and maybe the way you ride helps you give cues clearly to your horse.
Maybe if I rode my horse the way you do, her launch would send me over the back of the saddle when I race her down the beach with my best friends.
Who is to say who is wrong? All our horses are doing what we have trained them to do, and hopefully that is what we enjoy doing.
I enjoy trying many disciplines because it gives me an appreciation for what other people are training their horses to do.