Sure. 1) this isn't the first build, not even close. 2) 'wait until later' always fucks us over. 3) If they feel that they need to nerf secondary stats a) announce it in the release notes, that's why they exist and b) tell us also that they know this nerf people and that they have plans to offset the nerf.
The problem isn't necessarily the change it's that they implemented half of it, didn't explain anything about it so we didn't know there was a second half, have done this several times (not communicated) and, with the AP grind, people are rightly concerned that the spec they've invested in might become less good.
it's also that a lot of the problems they're addressing were pointed out during the NINE MONTHS of alpha/beta and should have been fixed then or very early in 7.0. Not as we approach the second patch of the expansion. They shouldn't be needed to do major stuff about how classes work on the 2nd patch. It's particularly galling when it comes to stats because you can math those out and figure out that, with the items in the game, the secondaries are too powerful, Especially when you consciously choose to remove primaries from the jewelry. This particular one isn't even a gameplay issue... just run the numbers.