I don't think you realize how messed up the Texans offense was due to BOB's offensive scheme. Very complicated and the line never seems to know what they are doing. In Deshaun's first two years. They had very little talent on the Oline and this led to them having the most sacks allowed in 2018. They finally used draft capital to add talent to the line in 2019 and they only improved to 25th in sacks allowed and this year regressed to tied for 29th in sacks allowed. Their TE's have been weak, Their RB's have been weak, the only talent group was WR's and Fuller is always getting hurt or suspended. The fact that the Texans traded away their elite receiver in Hopkins and Deshaun still led the league in passing with a great TD/Int ratio should tell you something. Further, when Cooks was hurt late in the season and Fuller was suspended, the Texans started Keke Coutee and Chad Hanson. What did they do, they both had 100 yard receiving games in the same game.
I get to watch most of the Texans games because I live in Houston, and he is the real deal. He is calm in the pocket, runs when he should, will throw it away when he has to, seems to know the offense, and throws an absolutely great deep ball. He has held the ball too long, but is getting better at that. If you are not impressed with him, then you probably haven't watched enough of him.
If he gets with a coach who know how to use him like Reid uses Mahomes, look out.