Originally Posted by
Enkrypt
Not saying Method is a typical example of a Mythic guild, but didn't one of their healers decide to level a healer of each class, gear it, get legendaries, etc, etc. just to be as optimal as he could for their regular and split raids? If they have a goal to be one of the first, mastering all specs of two classes isn't that tall of an order. Most of us do it anyway, just at a much slower pace, with our main and primary alt. A lot of raiders I raid with have multiple toons mastered, only difference is they're just not required to.
A lot of the motivation I saw for this was Mythic+ in Legion, too.