Though being bad enough (that they perform the techniques incorrectly), they further compound those incorrect motions to "create"(?) subsequent "techniques" based upon those incorrect assumptions (derived through their own mistaken applications).
Having began my own studies in a different system(from RyuTe®), I too was originally shown/taught many of those techniques differently. Those differences could easily of been ignored or not even noticed (by those seminar attendee's) when Taika was demonstrating his techniques to them. Only though prolonged practice within Taika's system (RyuTe®) would one become aware of those subtle differences.
My associate and myself have committed a major portion of our own study towards the further development of our knowledge (and abilities) regarding the performance of (Taika's) Tuite techniques.
Although Taika (usually) demonstrated his techniques using this method, he had always endorsed "Slow and Soft" for their practice. Unfortunately, this isn't nearly as impressive for demonstrations (which is why/how people,..including past instructor's, came to believe that they had to be practiced quickly).
To be honest, Taika's techniques can be performed quite "sloppily", and will still achieve their intended function (to varying degrees). Which is very fortunate for the majority of students who haven't experienced the slow-speed training (which is far more difficult).
At this time my associate and myself are in the process of writing a training text in regards to the execution of Taika's tuite techniques (for our own student's use, and/or possibly other RyuTe® assoc. students if an interest were to be demonstrated). Though not encompassing the remainder of the RyuTe® system, it should be obvious that it (Tuite) is clearly an integral piece of Taika's system.