I'd say that the abilities Guts, Flare Boost, Quick Feet, Toxic Boost, Poison Heal, Magic Guard, Vital Spirit, Magic Bounce, Hydration, Natural Cure and Sap Sipper have all been buffed indirectly by the buffed accuracy of status moves. Guts variations, Poison Heal and Magic Guard let the user take advantage of status orbs, and turn the user into a good status absorber, Magic Bounce reflects those moves back at the foe, Vital Spirit and Insomnia prevent the user from going to sleep, Hydration gives the user immunity to status in rain, Natural Cure prevents the user from being permanently crippled by status moves, and Sap Sipper gobbles up the Grass Whistles, Sleep Powders and Stun Spores from opposing grass types, (most notably Whimsicott).
Snaquaza, Ninetails gets Inferno from Vulpix's level up movepool. May want to add that to your list.
Trick Room seems like it may fare better in this meta then in standard. Porygon2 and Ridicules both got their movepools buffed, and an abundance of Zap Cannon and Stun Spore will only help TR sweepers.
Also, as far as I can tell, Regice is the only special attacker to gets Zap Cannon, (STAB) Blizard, and Focus Blast.