what the fuck is this pic? I see this consensus alot, but can someone explain how Break the line (2m dash that gives you some impact bonus) is "less situational" than Castigator stance (10s of invunrebility every 40s)?

I've been playing around with break the line, and whenever i see 10000 gunners + shotgunners, its suddenly a whole thing, theres no way to close the gap (dash too short) and it doesn't give you toughness back so that you can shoot back. dealing with gunners with break the line is now 10 times the headache than it was with castigator stance, and for what? A faster cooldown for an ability that aoe stuns (literally either arbites melee) or opens up bullwarks/rager groups (literally any blitz). Is the point to just walk at gunners with a shield?

I see enough good players use it in havoc to were i know its not BAD, but idk what i'm missing here.