Long-term access recovery typically requires rituals like annual check-ins, media rotation, and human drills. We already do this with annual fire-drills.

My password manager has, *checks*, precisely 900 entries. Say that I care about maybe ten percent, that's still doing a "drill" on every single weekend day of the year

Security aspects of software should just work properly. Google should test this and, imo, people should make backups of data they care about. Google might ban you for any reason, no matter if the recovery drill worked 2 hours ago it might not work anymore now. Seems like a fool's errand to keep chasing it instead of making routine (or automated) backups of the things you're still using