TUROK
Member
That still doesn't make sense. Just because the gestation was different doesn't mean that the PURPOSE of the creature changes.There's no point that a facehugger is grown in a stomach in any of the other Alien movies. This isn't the natural process that we've sen previously. It's not unreasonable to think that the different evolution of the facehugger here would yield a different result (i.e. a larger facehugger). I don't think this is an issue, at all.
The spermhugger is obviously humongous so it can conveniently overpower the Engineer and save Shaw.