Yes, the voidlings don't even count as real opponents in my book, I haven't had a single challenging fight against them, they are mostly like extras with a few token attacks.
Makes me wonder sometimes why the peoples of Rivellon are so scared of them... a granny can kill them with her pocket knife, lol.
I'm not too sure about the level issue you mentioned... there are several different levelling philosophies out there, with D:OS2 apparently on the side of "character levels are actually really meaningful".
Reminds me a bit of WoW in earlier days, when you had, basically, a "different game" every 10 levels.