Personally I am baffled as to why F4 and B4 do not refresh their respective buffs.
I understand that they want us to still use the older spells during Enochian, but thats why the rank 4 spells should "refresh but not apply".
As I understand, at 60 you have to manage refreshing Enoch, maintaining AF3 while spamming F4, and all the other movement related aspects.
At the very least allow F4 to refresh AF3, so we will have to track just our mp, Enoch timers, and movement, using B3 and F3 to perform the required Alignment Switching, while having F4 maintain (but not apply) AF3.