I can't speak for anyone else, but personally I think what I was disappointed about was what the ally predators could have been and how I was expecting they'd be used, versus what we've heard (the humans show up and see the preds, "here's your backup," they hop in the APCs, preds die, the end.) I was looking forward to them and was really upset to hear they'd been cut, but once I learned how minimal their scenes actually were, I was more okay with it.