If dealing with Brissett for most of the season is the price to develop Maye and give him the best chance to succeed, then yes that's a fair price to pay.
Frankly, bad franchises do this all the time. They draft a QB that everyone understands needs some time to develop and can't start right away. They have some bad games knowing the current starter is a placeholder. Fans get angry. Owner and coach get scared. They rush out the young guy prematurely. He's a pick me up for like 2 games or so. Then the novelty is off and fans slowly start blaming them. Guy gets a ton of blame and people decide he's just not the guy. He loses confidence and then the team has to rinse and repeat.
Think Browns, think Jets,
Dealing with Brissett now is worth compromising a guy we want to be the QB for the next 10-15 years.
I hope it works out. I strongly suspect it won't. Would be happy to be proven wrong. But I think a lot of the people calling for Brissett now are the same people who couldn't handle Cam and wanted Stidham, then couldn't handle Mac and wanted Zappe, and sometime next year will be the same people that have some magical guy on the bench that they think the team "HAS" to put out there because it can't be worse.