Well you're just saying that the SPL team should be the committee then
I absolutely disagree. Like I said, it should be a system only going after accounts for botting. This is not making them a commitee of anything else. It could also expllicitly mention that any ruling on any other basis than suspicion of botting would not be within the authority of this system. Of course, SPL team could ignore it and rule on politics or whatnot in secret, but they could do that already if they wanted to. It's not like you don't have the power to ban people at the moment. This would merely extend what falls under bannable behavior to include botting gameplay.
If only that were actually possible. There is NO way to 100% determine if someone is using a bot or not.
Like I said, it's never going to perfect, but you can heavily disincentivize it. It should err on the side of caution when making judgments. Just like a court would (or, rather, should). You might as well say it's 100% impossible to know for sure if 99% of crimes committed have actually been committed, therefore we should abolish the legal system. That makes very little sense to me. The people who go after bots, should only judge based on bot behavior. If any other motive is suspected, it should be cracked down on. Just like you should crack down on a corrupt judge or juror.