that doesnt answer the question b/c hurley still coulda given the walk ons a scholarship for just this year. paying for 3 years is still better than 4.
Giving a walk-on level player a scholarship year 1 and pulling it for the remaining years isn't the norm vs bringing them in no promises and they may earn a scholarship in their later years of the scholarship is available.
Also Hurley can award them a scholarship any time he wants. So I guess them getting an unused scholarship once the season starts or second semester could be possible. I just don't know why everyone feels the need to have a definitive answer right now.
Also as noted in the Andre Drummond thread there may be different compliance rules in offering a player a scholarship and bringing them in as a recruited scholarship player. Versus bringing them in as a walk-on that can be flipped to a scholarship later.
Them being walk-ons offers us the maximum flexibility in roster construction and gives them a slot to practice with the team without any commitments.