Tbh, nothing wrong with AAB if you're busy or lazy. The main issue with it is covered by Spice already, these triggers are pretty troublesome, but often can be avoided.
My advice would be something like: if you are going to be unable to do much of a contribution to the raid - be it due to lack of power or just boss being on low hp already - better just pop a damaging* ability with no extra effect, that way you will still get your rewards & can avoid activating some annoying trigger at the same time.
A bit correction: only water rag has trigger system as of now. The rest 3 got two types of burst on either normal or rage phase which they activate depending simply on RNG.
But yep, the trend from Illyunka onwards is that the bosses have some sort of trigger (sometimes even mobs). One exception is fire rag coz she was supposed to be implemented earlier than Illyunka, to begin with.