Monk Needs a Complete Rework

[Shurrikhan]

Just thought without thinking much, what if Shoulder Tackle changes into no potency deals, no charge but 15 sec cooldowns.
Will it more useful than the current one ?

Given the 200 ppm elsewhere, almost certainly. Any pure mobility option will offer more mobility than a damage-mobility tool that's mostly constrained by its damage optimization. That said, it also then removes some forethought or sense of risk, so it's not as if it's a free improvement to gameplay, only to capabilities/ease (and that's assuming, again, that you get the potency elsewhere to compensate for it).