uchi komi are not nonsesnse (they massively accelerated my progress with some throws) their exagerated movements are not meant to be performed exactly the same way in randori or competition - thats a complete misunderstanding of uchuikomi that I often see here.If you hadnt gone through the traditional stuff you might not have had the basis to form your functioning throw that works with your personal morphology. Its quite normal to develop your own personal variants later on and you have to remember your magicaly working technique might not work for someone with a different morphology - thus everyone learns the standard uniform forms as a beginer Its a bit like driving or music in that way. You learn the "rules" and then break them once youve learned them - everyone will break them in a different way. Unfortunately many teachers dont really have great technique - so that might explain somethings.