Not saying phased based was good, just that the fight design trends have shifted more towards timeline based (with generous secret hp% thresholds for forcing phase transitions).
Haukke (Hard)'s problem is the same as that of most 2.X content: the ilevel sync is set far to high. Haukke (Hard), Copperbell (Hard) and Pharos Sirius (being tuned for i60) all had problems at release even with characters in i90 gear. Having a max ilevel of i110 just makes things worse.
E8S seems to be one of the few exceptions rather than the norm of things. How many other modern fights have respectable auto-attacks/auto-attack rotations?i'm not sure how you're saying auto attack damage is meaningless when the e8s autos did over 1/8 of a tank's HP (2 autos destroy a TBN, so back of the envelope puts that at 1/8 per), or will chunk a caster