Turn 2 at the time was challenging up until the enrage strat broke out. T4 was a brick wall for most PuG's till they out geared it well into 2.1 and beyond.
I never really considered them "intermediate" in 2.0 as long as everyone was walking in with maybe full i70 gear.
Regardless of that, I believe your intent was to request for more fights where it's not essential that every member has an absolute understanding of all the mechanics to have a chance at success. This has become a common occurrence with bosses from T5 onward and does seem to put a lot of stress on players trying to move forward. It is a growing problems and I'm curious to see what SE's plans are to resolve it.