I have mastered Whiskey, I’d say he isn’t a bad character he’s just hard work.
Many characters such as Galilea, Oscar Mike and Thorn to name a few are great straight out of the gate and any helix upgrades are just a bonus. I feel Whiskey however is pretty terrible at the start of the match and his helix upgrades are all about fixing all the issues he has. Once you reach about helix level 6/7 Whiskey Foxtrot becomes amazing I would even say he becomes better than Oscar Mike.
Levelling Whiskey up to the point where he becomes a threat can just be painful especially if your team aren’t so good.