Don't forget that just because you can't run as much boost with higher compression doesn't mean you can't make the same power. Power is all about cylinder pressure. It doesn't matter if that cylinder pressure comes from compression ratio or boost. So, yes, it's true that you can't run as much boost with a 10.5:1 compression ratio as a 8.0, but at the same time, you don't have to run as much boost to make the same power.
For reference, new Coyote 5.0s are 11.0:1. And there's more than a plenty of them running around making 600+ rwhp on boost. But notice that it's only at 5-7 psi. That extra compression is a lot of the reason why it doesn't take a ton of boost to make big power. The problem with high compression is that it's a lot more sensitive to things like intake air temps, fuel octane (bad gas), a poor tune, etc. as well as being more finicky at lower loads (i.e. part throttle and idle), whereas lower compression and higher boost are a little easier to deal with. Done right, high compression and boost are just fine together.