Source on that? They sent a server update to activate a feature flag on a preexisting build. Apple characterizes this as a hotfix process, but not as their own expedited review hotfix process I don't believe.
If that build that first added the unactivated flagged feature used expedited review I don't see any sources saying so. But even then, expedited review isn't exclusively for security, it is also for events (Fortnite has frequent events):
"to coincide with an event you are directly associated with,"
https://web.archive.org/web/20190326213414/https://developer...
Adding an alternate payment option wasn't a security breach for users.
This is a complete stretch to relate it to desktop security in any way.