I do not see Akron wanting to play YSU in football, and it has NOTHING to do with fear of losing. There are other issues when it comes to YSU and Akron playing each other in football and mens basketball.
Also, this is not the late 80's/mid 90's when YSU was coached by a guy named Tressel and dominated the series(7-2-1). Before Tressel, the series was 12-12-1. YSU is a shadow of the program they were under Tressel, and Akron looks as if they may be turning a corner with Terry Bowden as HC. Akron is 4-2/2-0, and they had a big road win at PITT(3-3) in their 4th game. Given the weakness of the MAC East, and the MAC as a whole, it is not unlikely that Akron will win at least 7-8 games and play in a bowl game. And, they play BG, the best team in the MAC East at home. Win that game, and Akron may well win the MAC East. Here is the remaining schedule for Akron:
@ Ohio(3-4/1-2)
@ Ball State(1-5/0-2)
BG(5-2/3-0)
@ Buffalo(3-4/1-2)
UMASS(1-6/1-2)
@ Kent(0-6/0-3)
AS for KENT, it appears they have FCS opponents for 2015-2020. Also, since YSU moved to FCS, the record against KENT is 4-4.... 4-3 with Tressel and 0-1 with Heacock.
MY OPINION on why Kent no longer plays YSU in football is because Strollo wants to maximize the number of home games, and Kent is NOT going to play at YSU. There is no reason to play at YSU, as Kent has no problem finding FCS teams willing to play at Kent. Also, starting in 2005, YSU began playing a "money game", and that means scheduling Kent would result in 2 FBS road games. The AD has made it clear YSU does not want to have 2 OOC road games period, let alone 2 from FBS.