Blizzard spec really needs to be reverted to what it was. We farmed already with improved blizzard since vanilla and it only became an issue because of boosting and people farming solo dungeons with it.
Well boosting is easy fixable by not getting any experience if a higher lvl party member kills grey mobs. I dont know if its already in the game but if not then its very easy to implement.
And farming solo dungeons was also already fixed by teleporting mobs if you are on ledges. Blizzard itself wasnt even enough to farm dungeons solo, people always abused ledges and infinite mana with the resistance talent in the arcane tree.
There is no need to destroy a complete spec and many frost talents for “legit” playing. The whole purpose of frost is control, but right now you cant control anything with blizzard. There is a reason why the OG designers designed the way it was. Now its pretty much useless, failed design when mobs can interrupt you very quickly because blizzard is a channeled spell.
Frost right now is very unfun, doesnt fulfill anymore its class/spec fantasy.