And I think the opinions frame it more about who he would be blocking internally and kinda sidesteps the fact that the Tigers very well could be looking outside of the organization (through free agency and trade or even waiver wire) in order to upgrade going into 2023.
1B depth is the most obvious example - Torkelson struggled this year and, despite a stretch of improved play upon his callup, it is less than ideal to have to roll into 2023 with a situation where you have Harold Castro or Eric Haase as your fallback options for depth. With Miggy on the roster, you can't go out and get a Brandon Belt or Eric Hosmer on a one year deal because Miggy, who doesn't field or run the bases at this point, takes that spot.
Outfield is another one - lets say they go want to go out and get someone like Adam Duvall or Mitch Haniger), from there, it's not hard to see them in a situation where they are having to relegate someone to Toledo who is capable of putting up better numbers than Miguel (Kerry Carpenter comes to mind).
Put another way, Miguel isn't just blocking people internally, he could have an impact on how you build this roster from the outside as well. Now, Scott Harris says that he will work around it and, given his track record, I'm good with that. Personally, though, it's hard not to see Miguel as an impediment to the goal of putting the best possible version of the 2023 Detroit Tigers out on the field.