The reasons would be his age, relatively limited experience and manipulating service time. I'm not saying I do it. But I can see it.
Esp if the platoon works out well. If Albies is crushing the minors and showing some power again then maybe he just kicks down the door and you have to play him.
Holding him back for most of the season won't help his service time, and holding him back for the entire season plus some of next year just for service time reasons would be asinine. He proved in AA last year that he's essentially ready. Once he's healthy and proving it with success at the plate, he should be up.