That's basically true. Most of my issues are usually minor things that I just buck up and deal with and complain about later. Like a tank that kept moving bosses out of the Shadow Flares I was putting down with Swiftcast. Or folks running off before buffs are up. Annoying but more or less tolerable.
But there's always a couple occasions that are extra bad and stick in your mind. You don't remember all the average runs where you went in, killed stuff, and left. You remember either the ones where something awesome happened (kiting Chimera to death as a NIN in Cutter's Cry) or something awful happened. Still, it's nice to get that sort of frustration off your chest after it happens!
But there's always a couple occasions that are extra bad and stick in your mind. You don't remember all the average runs where you went in, killed stuff, and left. You remember either the ones where something awesome happened (kiting Chimera to death as a NIN in Cutter's Cry) or something awful happened. Still, it's nice to get that sort of frustration off your chest after it happens!