It depends on the type of face. I look at MITB as a mechanism where the ideal holder is ready to take that next step or has had opportunities few and far between, but most of those chances get fukked up by someone who has nothing to do with the situation.
LA Knight isn't a face that ducks smoke. He isn't portrayed as an underdog type. I can easily see him being the type to tell the champion ahead of time "This shyt is happening today, YEAH" and that would be that. It would also make sense for him to say "I saw an opening. I took it. If you have a problem with it, get yourself a rematch and I'll be waiting."
I have no problem with a face who doesn't get a ton of opportunities to take the sneak attack role. especially given that there's a lot of face talent that in theory would have had reigns already if some outside entity didn't screw it up for them when they had their shot. For faces with MITB, the important part is how you book them after the fact.
I.E. you have to book them as if they could have ALWAYS been that breh/brehette had they just gotten a fair chance in the first place. They win on their merit, as opposed to someone like Jey Uso, whose title matches thus far all have had interference.
For a heel, what's important is that they become champion. Details on how they won it or how long they held it be damned.
For a face, what's important is what kind of champion they were after winning it. Details on how they won it be damned (as faces generally don't have long runs with the title).