Salt the fries - No it wouldn't be impossible to please me. I'm just saying, I wasn't satisfied with this movie's ending or the direction the prequels are heading. The Prometheus/covenant story arc just isn't working for me. On the flip side, when I first heard the premise/synopsis for Alien: Isolation and Alien: Out of the Shadows, I was HIGHLY skeptical that either one would be good. I rolled my eyes at the thought of inserting ripley or her daughter into another story between alien and aliens. And both times I was pleasantly surprised and loved both! So I can be pleased, and there is still a story to be told in the alien series. These prequels just aren't it for me.
Predaker - Ridley doesn't have to die, it's just a hypothetical. I figured the man won't give up on the series (which I admire), so that'd be the only thing to stop the series right here. Maybe a bit extreme. If so I apologize.