Would be awesome to hang on but there's just so much more. Not worried at all except that obviously it's a good thing to be able to hang onto guys. If the time comes and they can't hack it academically, oh well, but if BYU offers that early and you accept, part of that acceptance should include you working to make sure that opportunity comes true as a student.
Either way, it will not be hard to find DE's and LBs.