Adebo also started 8 more games than Taylor in his rookie year so of course the yardage allowed total will be higher. While I do think that Taylor has the better ceiling and potential as a boundary corner over Adebo, I think the coaching staff will idealy want to get our best three corners on the field. Adebo can't play inside. So I think trying Taylor out at nickel at least to start makes a lot of sense. Plus, he's a very physical player and knows how to get active in the run game, which is something required for a nickel corner. He also talked about this on the Underhill pod, that he knows what it takes to excel in the slot position.
I'm sure they will still rotate and compete for that spot but Adebo won't make it easy for him. He'll want to bounce back after last year. He battled both ankle and hamstring injuries. He's still very much a high quality outside corner.
Remember, even if Taylor ends up with the slot role he's still a full time starting CB. We're in nickel something like 95%+ of the time. It's an important position.