Please analyze my comparisons to high jumping with springloaded shoes and rowing a boat with a motor on it. I'm saying the shirt is MECHANICAL assitance, just like the two things I listed. Please lets hear your thoughts on those.
If the analogous "sports" that you mention still required strength, form, technique, skill, hard training, discipline, and things like that, then SURE, there may be possibility for another division for those categories of competition.
I am doubting that putting a motor on a row boat falls into that category, but using spring loaded shoes for high jumping might. If that's the case, and if everyone in the competition is using them, then it might be an interesting sport to watch.