My Preferred Adjustments for Astrologian (Some Ideas I haven't Seen)

I feel like this is kinda off topic...or maybe it isn't, well, anyway.
When i saw that AST would be a Buffer job i instantly saw "Synergist" (From the FFXIII series) i thought "yees i'll be able to cast a magical buff on BLMs and SMNs, defense buffs on Tanks etc..."
But then...RNG!
Why cant we be an actual buffer job who can choose which buff apply, which player will receive the buff, which moment is the right moment, without being killed by a HORRIBLE RNG system?
I would replace a bunch of AST skills by single buffs with a certain cooldown that you can apply to a player who actually needs it.
For example:
Balance: X seconds CD draws the balance card and apply it to the target buffing the damage dealt by Y%
Duration: Z seconds
The same for the other cards, i would feel SO MUCH more like a buffer job. And we could replace shuffle and draw by another useful CD (maybe a healing CD?) as it would not be needed anymore.