I think this is a ridiculous notion.
Does this also mean the NCAA will allow the school to have an additional scholarship and additional player headcount for the year, for each returning senior? If not, there stands to be another player, for each returning senior, who expected to have a scholarship next year, who will not be allowed to use it. If they do, it penalizes a team that is restricted to the old headcount and scholarship totals – like the Utes, who have only graduating senior who was not a significant contributor and would probably opt out of an additional year.
I question how many seniors would really want to take advantage of this extra year, so it may not make a big difference, but there could be some teams for whom this provides a dramaticcally unbalanced benefit.