The people who caused the problem say they weren't responsible for the problem.

Do you see the issue here?

That goes both directions, though. Central banks are prone to understating their responsibility for bad things; the gold bugs and crypto hodl folks are prone to overstating it.

The answer likely lies somewhere in the middle. The US's relatively soft landing post-pandemic seems to demonstrate some use of monetary policy in this fashion works.

Of course they'd say that. Did you expect them to just say "yeah, we fucked you over by devaluing the currency causing your wages to be worthless"?. Don't be naive please and look into how much currency was issued during the pandemic and see for yourself.