That’s pretty much why they said it.
we prefer to wait to rein them in until the next major patch that brings with it all-new challenges, different gear, and other changes that shake up balance. This is because even if we’re improving overall balance, mid-tier nerfs can cause entire groups to potentially struggle with raid or dungeon content they could previously complete without issue, and this is especially true for the tank role.
From here: Upcoming Tank Tuning - March 30
(It was more specific to the tank roles, but it does cover everyone)