Ruin Explorer
Legend
Absolutely, but I think there are a lot of DMs, new and old, who would consider stuff like adjusting HP on the fly to be "unacceptable" (I wouldn't - though I do prefer to avoid it). Also to me that's controlling the outcome rather than predicting the outcome, which is different, imho. Like, in 4E, I personally really appreciated that, because the encounter building (after the monster math was fixed) was so reliable, and the RNG was a lot lower than 5E (for various boring reasons), I could kind of "let loose" with monsters, and know that just because I was "playing hardball", I wasn't going to cause a random TPK, just a more exciting encounter.and the DM can make opponents run away. Make them subdue. Make them friends. Even adjust hit points as needed (why would opponents always be at max HP?). The DM always knows how much danger is involved, because the DM controls danger.
In 5E it's still better than 2E or 3E, but I still think there's a lot to be desired about the ability to encounter balance, which for me very much speaks against the OP's position that 5E is inappropriately overfocused on it.