Kind of goes both ways...schools have unactionable offers....and kids have verbal committments.
A verbal commit where the school does not send a letter confirming a scholarship awaiting, is a place holder just as is the school's offer.
Schools "offer" many, many kids that they won't accept for a scholarship. Alabama offered 150 kids.
So the question stands, why make an offer to a kid if you won't accept his commitment?
Most "offers" to kids at this stage, are bogus offers. Sure many are the real deal, but there are that many more that are nothing more than a way for your school to stay in the game with a prospect without losing ground on him to other schools. When in reality, the offer isn't a committable one, though it could be down the road.
Nowadays, offers go out before evaluations are even made on many of these kids. If not, then you won't sign many of these prospects. So if you "offer" a player before making an evaluation, you can see why the so-called offers aren't exactly iron clad.
These "offers" mostly consist of certain verbiage such as, "we are offering you a scholarship depending on three main goals being met: keeping your grades up, continuing to get better on the field, and staying out of trouble off the field."
That way the school has "offered" the prospect, but they have given themselves wiggle room if the prospect wanted to commit right then, saying the offer is based on certain things that must be met first.