I grew up with his dad in Laie (same ward/grade/left on our missions on the same week/etc.). His dad is a former bishop that works for the church now. Shawn played football for Utah and it was not a surprise that Keanu went there too. That said, now that Keanu is leaving Utah, BYU would be a great fit. This interview from a couple months ago shows that he approached the Holy War in a healthy way.

https://www.facebook.com/reel/1461848447827937?fs=e&mibextid=wwXIfr&rdid=A9AfBLtsUdYpdoXG&share_url=https%3A%2F%2Fwww.facebook.com%2Fshare%2Fr%2F19zAcUDbdJ%2F%3Fmibextid%3DwwXIfr