The only thing I would change of AST

[tjw]

I get what you mean with Ninjutsu, though until AST it was the only CD that functioned that way, so I feel like it could have been treated like the outlier among secondary-effect CDs, rather than the necessary precedent for Draw or Spread. But the Forbidden Chakra doesn't actually go either way. It has zero cooldown interaction with Meditation, its prep or primary effect. The fifth Meditation changes Meditation to the Forbidden Chakra outright; the fifth ability/weaponskill cooldown doesn't actually trigger any lockout of TFC apart from animation lock, nor does TFC itself trigger any cooldown for Meditation. I don't see the relation...

Forbidden Chakra works similar to Spread, rather than Draw/Ninjutsu. The ability actually has a 5 second cooldown which is practically negligible, however, much like how Spread goes on cooldown after using the spread card but Draw doesn't, Forbidden Chakra goes on cooldown but not Meditation.

And the only precedent for Draw's cooldown mechanic is Ninjutsu. No other ability before Heavensward had multiple abilities stemming from a singular source as Ninjutsu and Draw does. So it makes sense for those two to share the same cooldown mechanic.