It's not much of a commitment. They can get an offer elsewhere between now and then. Additionally, some may be told they will be accepted pwo's and if a spot is available come signing day, they may get officially offered.
Yeah, I know but it’s still a little odd to me. I don’t remember it being like that five years ago or so or really even three… Didn’t seem like the PWO’s came out until the end of the recruiting cycle.