Frost DK only deals damage when we use our cds. Pillar is a 45 sec cd so I dont really mind being weaker than your average competent tank during the downtime.
The Long Winter talent increases Pillar uptime from 12 to 18 seconds. Thats 50% bonus uptime.
It just feels bad when I dont get the bonus time because the tank decided to move with mobs or because I simply didnt crit 3 times with my two hander. This also forces me to sometimes ignore mechanics in the fight because I didnt crit 3 times yet. I like doing mechanics in m+.
I get that the talent was probably designed with dual wield in mind where it wouldnt be an issue. but there must be other ways of forcing people to spec into crit intead of this.