No it's called defensive tactics, a healing ability that works the chance to revive and cover fire, you can save scum if you want but if you miss a shot due to a bad RNG and assuming it's not your last guys turn you can do stuff to mitigate the shit that's going to happen.You're right Xcom gives you a way to counter the shit rolls. It's called save scumming.
The main difference is that XCom allows you to mitigate the shit rolls, going in with a decent well set up team with tactics and the right equipment gives you a suitable chance of pulling off a decent result, even if the shit hits the fan. Darkest Dungeon on the other hand comes across as a game that even if you went in with what was called, according to the game mechanics, a perfect party using prefect tactics, if the game roll turns to sh*t then you're dead no matter what and where XCom differs is that factors designed to help turn a bad situation around actual do just that. My example of a Darkest Dungeon play through is a great example if it was using XCom rules then the camp would have recovered my guys enough to at least have given me chance of scraping through to the end of the dungeon, instead it ended up making my party much worse off than if I had just not bothered camping at all.Really I never understood how Xcom is supposed to be more 'fair' than Darkest Dungeon. Both have RNG(In battle, and locations), both can have you end a session with you either getting half your team back or 4 new headstones, A lucky Crit or miss can turn the battle for or against you, etc etc.
None of those thing bother me but game mechanics that are designed to punish you on top of punishing you, example trying to escape from battle, a mechanic that punishes you heavily anyway, only to have it fail, you lose your turn and then it punishes you anyway. They describe it as a game about making the best of a bad situation, I've decided to escape from a battle so it's safe to assume things are going bad anyway, I've decided that escaping and taking the stress hit is the best course for my party (I.e I am trying to make the best of a bad situation) only for the game to then say nope, lose your turn, get punished anyway.As for the actual game, yeah a lot of people hate the changes they've made since it made it 'harder' for certain teams to go through and just curb stomp everything(One Jester + 3 Helions). Corpses got hate, heart attacks got hate, the removal of stun lock healing got hate; so take most negative stuff with a grain of salt. It's still a pretty cool romp and an interesting battle system I hope to see more of.