The card rework is bad. It removes the gambler flavor of the job AND retains the dumb single-target cycling AND doesn't solve general healer downtime issues.
AST has plenty of support with its time/space magic spells. It doesn't need cards for that.
AST cards should be reworked to be its DPS mini-game, instead tossing cards at the boss like Gambit-Yugi. A healer is perfect for a highly randomized proc system like that because it will only add a bit of bonus damage but never be faulted for poor draws because it is a healer first.
After Scholar, AST is the most disappointing job in the game. I want to smack whoever is heading that job's design because the solution is so obvious.