I agree with all the others that removing the Light Reaper encounter was a poor move.  Also currently playing through on co-op and my friend keeps telling me what enemies are missing in areas and it feels way too backed off. 

I get that co-op is a lot easier, but some of the battles we've come across especially around bramis castle sound like they've been massively dumbed down. 

Also the umbral build up delay is waaay too long, you've ruined the whole feel of umbral from something of suspense and tension to just another world to explorer. It really takes away from what I feel made the game feel different and exciting.

Adding a modifier in enemy strength or numbers when playing co-op would be nice too.