It's insurance for a bigger fish. The Irvins have really hyped this kid up, even going as far as to say he is the #2 player in the state. If the staff can give this kid an offer, and hype up his status then the Irvins will pleased with that.
What I have heard is that Ayo is really good friends with Pearson, and they may want to play together. If so, we take Pearson because we can get Ayo, but also because I think the staff believes they can develop him.
The whole staff has watched the Fire at every single stop throughout the evaluation periods, they wouldn't put that offer out there if they didn't at least see some potential for this kid, besides the possibility of it helping land Ayo.