Pet aggro an issue in 2.4?

Be alert, hunters: Growl isn't casting first anymore, and it's making aggro touchy. Mania, that hunter maven and proprietor of Mania's Arcania, breaks the news. It's unclear (especially to me, since I don't have a hunter past level 26) if this is actually new or just a consequence of the new combat log system that rolled out in patch 2.4 but if it is new, it could be a nasty surprise for you hunters out soloing.

Mania goes over the list of reports, some arguing for better pet aggro, some worse, and specifically singles out boars as possibly suffering the most since growl scales with pet AP and the boar's charge ability adds AP to the pet's next attack. If that attack is growl, yay, more aggro! If that attack is not, boo, less aggro.
http://www.wowinsider.com/page/7/