See, I'd much rather have THIA adopt a more laid back attitude. Less drama that way, less serious business. I like to think of THIA as being a group of friends that talk about a shared interest while occasionally making fun of each other in that friendly, joking way.
PU on the other hand is like a bunch of research personnel doing terrible, terrible things and fucking with the laws of nature at some underground research facility. A facility that's been infilitrated by Wesker fangirls. One day all will be lost, and we'll end up activating the self-destruct device, blowing up the site and being home in time for cornflakes.