I love flying. My favorite form of travel. I actually wish they would retrofit ARR for flying. If we could actually fly from Limsa to Ul'dah, I'd do that, too, but alas, server limitations etc.

Anyhow, it hasn't hurt anything for me. I don't miss out on seeing any beautiful parts of the landscape - we had to traverse them in near entirety to be able to fly in the first place, and then we are still active on the ground when we get to whatever destination we flew to. Flying is my "oh yes!" moment when I enter a zone. If anything, it's done the opposite of hurt immersion for me.