You can simply destroy the doors as it is now with a few swings of a steel weapon, the only difference would be a more stealthy approach. It wouldn't be a difficult change to add either as it could simply mirror current locked chests with prompts to unlock. The only downside I can think of is that with a prompt newer players may be more enticed to unlock doors and bypass the level design, but I also think TFP kind of did that already with hidden loot rooms. Strange to encourage players to ignore locked doors then add hidden rooms behind those same doors.