Not for those looking to push the current or upcoming tier.
There's nothing saying it won't work when yields are changed, and there is absolutely no way they can "backtrack" on recipe difficulty, nor should they. Endgame recipes SHOULD be difficult to Craft and even harder to guarantee HQ.
They didn't "move back" on anything gear-wise except scrip yields and Favor mats. Since Crafting Endgame can't be achieved in a single day like in 2.x they paced out the increase on recipe difficulty to give players time to get the gear they needed as new recipes were released.
Best option? Yes. Necessary? No. Endgame is supposed to be challenging and rewarding. The only thing that was challenging with 2.x Crafting was the challenge to the size of your wallet, and your reward was a market already saturated with sellers because the barrier to entry was way too low. 3.x Crafting actually rewarded those who took the time to gear up in 3.2 because while the size of your wallet can still determine the speed in which you reach Endgame it's MUCH harder (if not impossible) to find enough gear pieces/mats to gear out the classes you want, and that's not a bad thing.