2 things,
1. Holy shrapnel, is everyone stupid, what do you mean sentinel looks at players. Sentinel is not a player by any means, they are an ai. There is no player called sentinel (well someones got the ign by now) it's just the name of the anticheat. No one records through the eyes of some all mighty sentinel, no, sentinel simply notices irregularities, notices people doing things that are not possible legit then ban them accordingly. Sentinel does not actually see you cheating then ban you, there is no camera... Doing a /sentinel report is stupid because it simply wouldn't do anything different then what is already happening.
If what you are suggesting is sentinel stays off until someone sentinel reports someone to avoid false bans that Is simply going to make banning cheaters harder because there is less time sentinel is paying attention to players.
2. The odds of you being false banned 3 times are immensely low. Pretending of all legit players 1/50 get banned, which is an understatement. There is a 1/125,000 chance all of them were false.