My gut feel is that it's a solid offer - they're not going to turn away his commitment or anything.
That said him flipping to BYU would mean a LOT more to BYU than it would to Utah. Coaches don't go strictly off 247 composite obviously, but it still tells a story
They've had a stellar recruiting class. He's their 16th highest rated recruit and third highest linebacker. He'd be the #4 overall recruit in BYU's class.
Looking at who is left that BYU is targeting is generally underwhelming. Utah has a bunch of more high end recruits they're busy trying to close on (and prevent from flipping). Seems like BYU could take that to their advantage and potentially flip him - just because Utah has so many other priorities