He was very interested in BYU in 2011, but BYU never offered.
https://n.rivals.com/content/prospects/2011/isaac-luatua-48159#school-interests
"I think they're set for guards and that might be why," Luatau said. "I think they're looking more for tackles in this class. That's what I've heard, and they're just looking more at tackles."
When you first talked to me, that was my school," he said. "Ever since then things have kind of been going down. At first it was all about BYU. I was like, 'BYU, that's my school, that's my school.' Ever since then I've been talking to other college coaches that have been recruiting me and now BYU isn't the big school on my mind anymore."
So he went to Alabama instead. The last OL scholarship BYU signed was a huge reach.