Here's your reason- you were expecting a remake, or something very close to one, didn't find it, and were immediately turned off. We've been over this many times, were'nt expecting what you saw. And boring? My Gods no- as a fan of Alien, I would think you would be able to understand build up/development. If you were younger than me, this would be the part where I would say "kids these days".
Also, it's hard to judge shows you haven't followed. Unless it's a comedy, and the jokes just suck.