So...we effectively want a 90 sec cooldown Divination? A Divination that risks getting misaligned with other raid buffs whenever Sleeve Draw is used? It being a 120 second cooldown and Sleeve Being a 180 second cooldown makes it to where AST can use their buffs in conjunction with these cooldown windows.

The 120 second cooldown is a non issue when you have to spend 3/4s of said cooldown window setting it up.