QuoteI'll admit it kind of is a bit on the complex side in all fairness, but I found it cool and a way to expand upon the Hive dynamic without deviating too much from the 'two-caste' system people seem to prefer. That, and the Aliens and their entire 'dynamic' and how they tick is complex as hell-A long and lengthy process to produce an egg to make a facehugger that has to find a host and produce a viable adult, not even getting into the different ways an egg can come to be, or who even gets to MAKE the egg given moulting and eggmorphing are all 'viable'. In my opinion, having bodyguards that are completely loyal to you and ensure your genetic bloodline survives above all else seems like a solid survival strategy, and no more complex than anything else the Aliens do.
But this seems like talking it up to be complex when it isn't.
Eggs aren't a big deal - the Queen lays them, or at a pinch a host can be morphed if we go down that road, which takes a couple of hours or so.
Adult Aliens come from a host in under 24 hours.
And there doesn't need to be a special caste of 'loyal bodyguard' when an normal adult can do the job.