i got it how to fix AST!!!!

[Alexia89]

WHM = Priest
SCH = Paladin with pet
AST = Druid/ shaman (with celestial magic)

No. If anything, Scholar would be a Disc priest as mentioned above. WHM is more similar to a Shaman tbqh (though Holy Priest works too).
All semantics though- on the topic of your idea, it sucks.
That would mean a complete and total overhaul of Astro and that would take a lot of development time. They don't NEED an overhaul, they are fairly capable already- there ARE people clearing the savage content using an AST so we know they are capable there. If ANYTHING they just need a few tiny tweaks, particularly in the Nocturnal Sect, and they will be more than viable.