I also think a lot of people would use this tool, which indicates that the system needs to be changed.
Probably not the main point of your post, but "system needs to be changed" to what exactly? How would your tool indicate an issue with the system? That feeder and afker shouldn't be able to get into YOUR game? Rito already implement a dodge function to give you a way out if you don't want to play that game and you already said it, the first one is more or less "free" (unless promo).
I play normal or ranked with a 50% win rate mind set. I almost never op.gg any of my team mate in pre-game whether it's normal, ranked, my placement, or my promo. The only reason I've ever dodged is because someone ban someone's pick and the flame started or I smell a troll or I don't "feel" like it will be a good game. I'd rather not deal with that. As long as my games are not toxic flame war, I'm willing to play with the good, the bad, and the ugly. Just another loss on my 50% win/loss. No big deal.
Whether your program is allowed or not would be something you need to ask Rito directly (no Rito on this board) rather than get the opinions of regular players like you here. This is something that can potentially get you banned so better get at least an evidence direct from a Rito employee to prove that you got the okay for the specifications you planned to use.