Alvarado agrees wholeheartedly. "I know some people are saying, 'Oh, I don't want Wasteland 2 to be scientifically accurate or realistic, because that would ruin such an off the wall game,' we're not doing that at all. ... We know that the game would be pretty boring if it had to be 100 percent realistic. We're trying to add some science facts on to their fiction just to give it a bit more grounding in reality. If you happen to identify with some of the actual science, you enjoy it that much more. If you don't, that's fine, you're still going to enjoy the game."
The Hermit crab example sounds fun to me. I don't see any possibility that the game will be too realistic. It will just be a little bit less dumb than other games.
Fargo seems like a relatively savvy businessman, so I'm guessing that he is not spending a lot of money to hire these guys. There probably isn't a lot of call for these consulting services, especially in this economy.They are probably happy to work for cheap and get some publicity.
If it turns out that this is eating up a lot of the budget, then it is bad. If it turns out these guys are working for cheap, it's a fun idea that will probably enhance my enjoyment of the game.
EDIT: I've never heard of any of the other companies that they are consulting with, so I'm guessing they jumped at the opportunity to work on a semi-well known project like W2.
http://www.thwacke.com/clients.html