Yeah, I'm not sure how successful free transfers to less populated servers will be, but it's better than nothing, I guess.

I do hear of people transferring into Gilgamesh in hopes to get into the raiding scene better, only to find out they don't like it and some even return to their old server.

People not satisfied with Gilgamesh/Balmung or whatever over-populated server they're in can then make the switch with much financial sacrifice. It'll also help if they increase the gil limit to transfer