I think the answer to a lot of the hypothetical questions you offered as examples is "who cares"?
No, seriously. The origin of the Alien was an off-limits topic within the fiction for like 30 years and fans and audiences were completely okay with that - heck, I'd argue that a not-insignificant percentage (of not a majority) preferred not knowing where the Alien came from. The problem with Prometheus/Covenant (and with many prequels) is it answered questions nobody asked, or nobody wanted answered.
Not the pattern I've seen over the years. Countless people have asked those hypothetical questions countless times. There were page after page of threads regarding those questions on the old imdb forum to name one example. I'm not going to dig into this very forum's archive going back several years, but it wouldn't surprise me to find these questions the topic of multiple threads.
I don't know how far AVPG archive on display goes back, but for a quick AVPG example.....let's see..... how about revisiting this very thread where 21 pages are peppered with members debating the origin of the egg......not to mention the original post asks, "where do the eggs come from?"
So to answer your question who cares, I would bet quite a few.
Wasn't that blue light on top of them working as some kind of stasis field for them? Thus preveting them from dying?
The blue lazer was a Ridley Scott add on. According to what I've read, The Who were rehearsing in a stage next to Scott's Alien project. The crew had taken a break and stepped over to watch The Who, it was a dress rehearsal, meaning stage lights activated including their lazers. Sometime later, Scott had borrowed The Who's lazers for the egg chamber scene. He thought it would be a cool visual effect. As for its in-story function.....hey, it's Ridley "don't bother me with story" Scott.