I much prefer Paizo to errata things, even if I don't like the changes.
It lets me know I should review things. I may not agree with the changes they implement, and thus might not change them myself.
But often times I agree with items that they changed, though often not in the way they changed them.
You too have the power to ignore changes you don't like if you GM. And, if you are not the GM then perhaps you're reaction is because it affects your character without taking into account that the item you were using was probably too good (disregarding that its probably now worthless).