No offense, but the amount of new species in campaigns is alarming.
It's just like the tendancy to make bigger ships with larger beams. You don't need that to make a good campaign. Actually, I think it harms the chances of making one, for reasons of plot coherency and gameplay balance.
Worse is the appearance of SEVERAL new races in one campaign. First contact is supposed to be a rare, almost unique moment, and there you go, turning it into "wee, another new race."
I could find more reasons as to why this seems a glaring mistake to me, but I won't bother typing them, since you won't change your campaigns anyway
