They actually never said it was "FINE", they merely tolerate this kind of behaviour. There's not a single word about this strat to be fine or working as intended. All it takes is just a bit of common sense to realize, that the enrage strat is not actually intended. As SE confirmed that this is not considered to be exploit, feel free to use this strat all the way you like, but please don't tell others that this is working as intended and 100& legitimate, as it is not.