It's slippery. You're swamped with low-effort PRs, can't possibly test and review all of them. You will become a visible bottleneck, and guess whether it's easier to defend quality vs. "blocking a lot of features" which "seem to work". If you're tied by your salary as a reviewer, you will have to let go, and at the same time you'll suffer the consequences of the "lack of oversight" when things go south.