For cleave encounters our scaling is actually not that, since hb scales okay with mastery and crit and even haste to an extend and constant aoe, but the nerf from 80% to 50% cleave was really redundant and really hurt, i mean it was the niche that made frost dw so good in t14.
Since our feedback is somewhat ignored I'm very interested if they let frost just die or do intelligent buffs. See the real cries coming when frost 2h reaches it's scaling death at like 20k (guessed number) haste, where we can spam oblit with many km proccs so that mastery and crit are completely worthless and start to scale like backwards with haste getting useless due to being nearly oblit capped with some filler left. Frost dw will slowly be buried by by its low base + below mediocre scaling and unholy, lets see, at least are our stats not devalued by our core mechanic. xD