welll Rath was a special case because they were trying to emulate Monster Hunter as per the crossover theme.

I find it incredulous that people still bring this up. how have you not known by now the devs of XIV want balance and conformity in their encounter design? This is not something that just gets changed on a whim.
there is not enough call for a shake up of things. unless the entirety of the playerbase is upset with how things have been going for the past 6 years, nothing is changing anytime soon.