I really like Stephenson, he has a lot of upside, what I don't like is the narrative that a catcher (and SS) is about hitting first. This Reds team needs to think about defense a bit more, it would help if the fans did that from time to time, I mean Eddie Taubensee was a hell of a hitter too.
Furthermore, Tyler is a tall man and that position has not been known as a kind position to tall guys (only 8 guys since 2000 that height have caught 100 games in a season) Mauer and Wieters are the cream of the crop, additionally only six of the 24 season of that group produced an OPS above .800, four of them by Mauer alone.
So yeah, he's a keeper but the other guy won't be a bench ballast, he will get some AB's too