How is this Balanced? (Bard)

[Koltik]

It's not like bard burst isn't obvious as hell and can be stun locked or you can cc them or los them or use carnal chill and many more things.

Cool. You can also do this vs every other DPS, the difference is that they don't even have the ability to kill you in half a second (MCH excluded, but that's another discussion).