if there was ever someone that wouldn’t be allowed to play anything but Lawful/Neutral Good at my table it would be Mr. “I can just be a Good Slave Owner” over there.
It would be a lot of work to change the system, but I've said for a while that saving throws should have degrees of success, and bosses should have all saves reduced by a severity level, so they take partial effects, but are immune to the most severe effects.
Secondly, incapacitation should have levels like exhaustion, with one level being similar to slow or mind whip, two being as incapacitation is in standard 5e, except for legendary or lair actions which are only stopped at level three.
Religion checks are about recalling knowledge, which is intelligence. It's already a severely neglected stat, it doesn't need to be made worse for the sake of making clerics more SAD.
Have you met the average warlock?