So it's been confirmed that the Weyland in Prometheus has nothing to do with the Weyland from AVP? There's a lot of in-universe time in between the settings, which may or may not have resulted in knowledge being lost, removed or destroyed by alien hunters from outerspace (I'm looking at Concert Jungle from the PS2). If this has been addressed already I apologize, I've been out of the info loops for a while.
I do see that SM has made it ambiguously clear that the WY Report only covers Prom and the Alien series though, so I'm just putting the question out in general.