They should just delete AST

[Mortex]

Yes, I get the math, but you don't get the execution of it.
You could increase my speed by 50%, but that’s useless if I clip all my GCDs and therefore don’t reap any benefits from it. Then that theoretical, mathematically proven 50% damage buff would amount to a 0% damage buff in practice.

This is why AST cards were all just flavour.
You see it as maths and percentages, but the DPS who you're putting these cards onto are the ones who feel the effects, not you, and they don't work for them.

Old aoe Cards did exactly that.