The concern I raise is that religious fanatics replace MBS. In that context, the relevant Iranian comparison is pre-1979 and post-1979. Post-1979 is a nightmare, a terrifying Twilight Zone episode. See:
https://en.m.wikipedia.org/wiki/Human_rights_in_Iran
In Saudi Arabia, MBS is probably better than a more fanatical Wahabist government. I gather the power struggle between the royals and the clerics is ongoing. Human rights progress would reverse under the latter.