The Rotax crowd seems rather blase about prop strikes, and I'm not saying that's good, just a fact. So don't waste time telling me it's a bad idea! But it does seem the reduction gearbox and it's slip clutch offers some degree of protection over a prop bolted direct onto the crank. What I hear in the aftermath of a prop strike is not talk about an engine tear down, more, "who has a prop I can borrow?" Of the half dozen or so incidents that come to mind, all have continued to fly many hours without any surprises. One prime example:
https://www.youtube.com/watch?v=FQ3WByjahOc&t=383s Note the lack of prop hub protection taken during the turn over to the upright position, blase, like I said

Again, I am NOT saying this is the way to proceed after a prop strike in a Rotax powered plane, just that quite a few have and it seems to tolerate it.