Premise of Engineer ship arriving at some distant colony planet to bomb the shit out of it with Black Goo (which, as HuDaFuk pointed out, already connected to Alien, whether one likes it or not) sounds interesting enough for me so I won't be too annoyed with not having proper Aliens in the book but I can understand people who are not too happy with where Ridley took franchise with prequels' narrative being turned off by it