When I started reading this line in the patch notes for tomorrow, I was very happy about the change.
"Friend of the Animals summoning skills will no longer noticeably delay the use of your next queued skill."
Then I kept reading...
"This change does not apply to the Sic-em skill."
Was there a noticeable delay after the other summoning skills? Sic 'em! was really the only skill that caused me a big problem with delays. Expecially since it is pretty much useless without also hitting the Command Pet skill after. They end up just standing there stupidly for a couple of seconds rather than joining in the fight and, during that time, you can't move or use any other skills.
So, yay I guess if the other summoning skills had been causing problems that will now be solved, but wow were my brief hopes dashed by that second sentence in the notes.