The ability delay is not fixed, at least not for me.... In fact it's worse, alot worse.
I had delay before the patch, now some skills just refuse to cast.
An example:
I was unstunned, had no lingering effects on me, it was not on cooldown, I had no global cooldown, yet my Overload just did not want to cast. This also happened to other skills, but this cost me my life, which was a tincy bit annoying >.<
Hope this isn't just an issue for me, so it is something Bioware is looking into >.<