It's a big step forward on the business end of things. This isn't something "fight fans" can get excited about, but what it basically means is that the UFC has expanded to the point where Lorenzo and his position is needed full-time, and it also shows they're quite serious in terms of expanding the brand internationally (eg. in Brazil). And, perhaps, it's even more serious considering what Lorenzo is leaving behind (the family business where he's earning a ridiculous amount of money).
So no, on the surface and in the immediate short-term, this doesn't seem like a big deal. In the long term, this is potentially a huge step forward.
http://www.letour.fr/ It's a week away - but the Canadians were good enough to post this story by the AP's Paris bureau chief (which I can't seem to find at ap.org - oh well) - so HERE are the names you need to know! http://www.cbc.