If they think he is ready, I am all for it. If they are rushing his timeline because Brissett is a disaster, I think it is stupid.
Don't rush him so the Pats can win a few more games in a lost season. That is just silly.
But they feel he has gotten his footwork down, understands how to read defenses at the NFL enough, etc. then playing him will be worth it for his development.
Sitting him or playing him, my opinion is the same. The #1 priority this year is his development. Wins and losses are irrelevant.