As you stated this is a 6 month old post.
Most of the complaints listed by the OP are now irrelevant with the addition of EC, the only valid complaint is that Nightmare mode EC still hasnt been implemented & that there was only 4 bosses. A new raid coming in approx 8 weeks.
This game never has catered to special snowflakes and never will, going F2P has shown that their target audience is the unwashed masses.
Well, 5 bosses. Nightmare Pilgrim is relevant. Easy, but relevant. But you're right. Next tier better have as many bosses as Peter from Office Space.