When I started working north of point of the mountain, there were a lot more. I ran into a lot of Yewt "fans" who didn't watch sports, didn't go to The U, had no real investment in the teams, but just wanted to be different and edgy. I wouldn't blame any non members for being a Utah fan, but I in the half of my life that I lived in Provo, I didn't really meet any of those people. Generally if you didn't like the church or BYU or whatever, you probably wouldn't be living in Utah County anyways.
The only Utah fans I talk to now are basically the ones here and on reddit and to be honest, I don't see a problem with either. Some of our fans are just as insufferable as some of theirs and I think both sides agree that there are even fans on their own side that they can't stand.