Maexxna fight:
https://classic.warcraftlogs.com/reports/dF79GkwCDjbt8gmJ#view=replay&fight=11
3 ppl outside Maexx room, paladin just heals the ppl jumping in and out of the slime constantly.
Same run, on Anub
https://classic.warcraftlogs.com/reports/dF79GkwCDjbt8gmJ#view=replay&fight=3
Sure, you can claim that it ain’t as controversial not killing the adds and just pulling them off to the side, but I bet it’s done to enable better healing parses with the constant poison dmg.