Actually, Fighters have been a real threat since the beginning of this year.
Fighters were Standardized to have enough speed to overtake and kill planes, which was a massive help.
Commander Skills allowed Fighter-spec'ing which increased their threat a LOT
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Since the Fighter Standardization and Talents, I've run Fighter builds through Ranked as well as Clan Battles. The support style play is a lot of fun, but it's very hard to pull off. Especially when your surface assets are behind/losing... then you're forced to stop locking up the enemy CV while you're team is already at a deficit.