TBH, haven't Xenos been worshipped like that before? Maybe not as an actual cult in films, but plenty of people have been in awe or worship of these things, like Dr. Jonathan Gediman from Alien: Resurrection and how The Dragon, while not exactly worshipped, was considered an 'eater of minds' by Golic, and in the Special Edition was released from its prison in the water tank by Golic due to the latter letting it out based on a delusion.
Hell, the Engineers/Jockeys had been making murals of Xenomorph/Black Goo derived aliens for years as well-Not to mention all the comics and games that have also tackled this subject. So I don't think it's impossible to do, just needs to be done WELL-which is in of itself a hurdle.