Were Stuns Tweaked Recently?

[Urlance Woolsbane]

This could well be my imagination, but it seems like it is now common to fall prey to a string of near-constant, two second stuns when in crit. This makes formerly manageable situations a lot more hairy. I'm not per se opposed to this, but I'd like to know the rationale, which I can't rightly do when the change hasn't been documented. I couldn't pinpoint it, but this seems to have taken effect sometime in the past month or so.

Again, it's possible I'm delusional and it's been this way since time immemorial.