Then just write that your are disappointed that the didn't play a bigger role and not some non-sense that CDP hates her because they wrote her in a way, that makes perfectly sense plotwise but you just didn't like because fangirling.
It makes NO sense.Philippa was the most wanted member of the Lodge and she managed to hide,even without eyes.Keira and Triss were also doing fine,even though power-wise they're the weakest members.Sheala on the other hand is one of the most powerful mages in the North.And unlike other sorceresses she had options where to hide.She could've just teleported to Kovir and hide there.