SAM out classing all other DPS

[Thunda_Cat_SMASH]

then they pop their short CD Meikyo and are back to max again.

Meikyo is a DPS burst and the equivalent to DRG's B4B, not MNK's perfect Balance. If a boss jumps, a Samurai without Hagakure is punished severely, depending on current Sen and how close buffs are to falling off. If they're forced to overwrite a SEN to keep a buff, they lose 240 potency worth of damage then and there with no way to mitigate it without Hagakure. No competent Samurai is going to use Meikyo to reapply buffs besides the Sen granting Yukikaze, that's be like using B4B exclusively on Heavy Thrust spam.