they plan on making the "time between new bubble" of SS scale with haste acording to a recent blue so it would posibbly create a situations where haste "plateaus" exist where a single cast of SS gets you x+1 or x+3 number of bubbles and the point where you gain a new bubble per cast "only just" posibbly makes it outweight the hot until you gain another tick of the hot from haste and then it switches back.
talents that change with your haste as to which is more awsome -> hell yea
that said the hot also "replaces" wog, so i would imagine a lot less are taking the hot now.
NB: this could all be gibberish if i have goten the new mop abreviations wrong