I think the main thing that changed was the Gith Patrol all have +1 weapons. So the combination of an additional +1 proficiency for being level 5, an additional +1 on attack and damage rolls from weapons and them all having multi attack, this fight is really tough.
I was able to clear after maybe 2 resets, but I also went in without cover as though my party just walked up, but even then I was down to Gale with maybe 4 HP, but Lae'zel had just about full HP. Had to use 2 scrolls on myself and Astarion
