Eh. Empey was scored as a 0.84 as a OG.
Capra was .84
Dixon was .84
Grant was .85
Paulo was .87
Peck was .83
Scott was .85
Umana was .84
Unutoa was .84
Richardson was .85
Agasiva .86
Empey is solid, but not essential. I'd probably go to BYU if I were him as well. Play for your dad and a lot easier path to playing than at Utah.
Those are all the OL recruits that came in his class (2015) or 2016 or 2017. He'd be a true freshman this fall, so he'd have a huge uphill battle for playing time at Utah. At BYU, he is probably already penciled in as a starter next fall.
Get used to these kinds of transfers, especially with kids from Utah. When they go on a mission, they lose a bit. When they come home, they are behind the 8 ball. Kids like this have two options: Go to Utah, fight for playing time, and quite possibly never see the field until they are seniors (Harvey Langi) or go to Utah and play a lot your first year and start by year two (if not by year 1).
A lot of those borderline kids will choose the playing time over fighting/developing at Utah.