Mr. Happy said the same thing about WHM in 4.0. Look at where healers were before 5.0-- so bad that they told us we had to wait on a new job for balance issues for another expansion-- and think about that. I don't think they really thought about how certain skills interact with each other. Misery for one. Everyone seems to think Misery is the OMG GOD skill, but it's really not if you really think about it. Damage going up in dungeons? Same *excat* things were said going into Stormblood. Nope.
He also said that SCH felt pretty bad, which goes against you saying that he said they were fine. I don't remember what he said about ASTs. But on State of the Realm there was a mixed sentiment about the card system at least. Personally, I was on team Sly who didn't like the changes.