I tend to agree with this. About a year ago I could count the AA "irregular ops" affecting me with the fingers of one hand, but since then AA has gone downhill, at least IME. I like AA, still do, but "mechanicals" have ruined many of my recent trips, far more than before, and way more than the other OW airlines I have flown recently, and since most of my AA flights are part of tight connection itineraries, this aspect is starting to bother me.