BigDaveJune 02, 2012I think thats the idea that Lindelof had, that some things do not get explained that we can all have fun in guessing and debating what all that stuff meant....
I have no problems with no direct Alien Link, or no explanation to what went wrong....
I think more could have been done as far as the Engineer and his interaction.... but then again if they had planned to wipe us out years ago but never got round to it because something killed them all nearly off.
Only for him to be woken up by us, he would think "crap, i knew we should have wiped them out, now they found us and i am the only one left here, they cant be allowed to have the secrets this place holds" 
Then to come across David and know he is not real and a creation of mankind, he then in anger rips his head off, and goes on a benny.
I think there is the problem when you go into any story like this.... if we assume that the Engineers on their homeworld wanted us dead, maybe they never even knew that the Engineers from LV 426 had actually created us.... maybe we was their dirty little secret....
Maybe those form the homeworld left those on LV 223 and even unleashed something on them as punishment for creating us, we just dont know.
Hopefully Prometheus 2 would answer those things, as the worse thing is that movie does not answer the questions from Prometheus and the Engineers and at same time steers even more away from Alien.
R.I.P Sox  01/01/2006 - 11/10/2017