That was great! Definitely lived up to its billing, Hicks. Good job to you and Ridgetop. Cheers to Tom Woodruff and Alec Gillis for giving you such an enjoyable interview. That's too bad about the sourness that developed with Giger. I recall Giger complained bitterly about the creche scene in Resurrection because it's structured a lot like his painting, The Traveler.
I can't prove it, but the sense I get from Giger interviews and articles I've seen is that he resented people using his sourcework as reference (ie the Necronomicon books) and he called that "stealing his work." From those sources and from this interview, it seems Woodruff and Gillis got stuffed into the "stealing Giger's work" camp. Giger was also very unhappy with the look of the Resurrection aliens for both the amount of goo applied to the suits and the softer, more organic look of the creatures. His terms were most unflattering, and he emphasized his preference for aesthetic monsters. Sorry, I don't have the source for that.
I do have a little snippet of video from somewhere. In it, Giger clearly states he does not have Li's skeleton. He is asked about it and answers, "I'm not mad. No that's not true." He also talks about the skull in the head of the Alien. He had a collection of skulls, including a shrunken head. Giger was an interesting fellow.