In my opinion you will be underleveled in Act 2 if you skip the creche/cloister Rosemorn. Does not count in Tactician (and of course not in Easy/Normal) but in Honour mode it does. There are two fights a bit difficult in Rosemorn, but you get precious xp and some good items. I also question myself, why would you want to avoid content in a game you play because of the content? There is nothing in Act 2 which will be not there if you stayed in Act 1 a bit longer.
