I don't think that's true. You need more than a few warriors to be able to escort Settlers at the requisite rate. All I'm saying is that, as an experienced Deity player, I build noticeably less warriors in the early-game than when I tried playing a game on Chieftain just to check out what my friends were talking about. I don't know how you're going to get the evidence, because this was only drawn to my attention by newer players, who are less likely to post here. By the time you feel established in the community, you've normally played enough not to be on the lowest difficulties. EDIT: Mind you, I think you could quite happily spawn more barbs on Deity, too. I don't know about other players, but I occasionally feel like they're too absent!