AST got a mini rework too because of problems at the start of ShB, including reduced cast times, generating MP from playing cards, not being overwhelmed with cards anymore and Lord/Lady requiring less clicking.
All these changes between expansions are just to get it through to the next expansion though, because real changes require expansion-level redesigns and not quick patches that haven't had much thought, so we usually have to wait 2 years for things to get changed beyond small adjustments to things like potency and cast time.