Bard's Q shouldn't stun, but tether champions together or to a wall instead

Stuns are sooo 2014. It would be a lot more unique and interesting if Bard's Q tethers enemies to things.

If the second strike of Q hits a wall then the enemy will be able to maneuver within the tether radius of the anchor point and use abilities, but won't detach from the wall until the time is up.

If it hits another enemy champion or minion, then both champions can move, but can't exceed the tether's distance from each other until the tether expires. In this case, the two enemies would be able to walk in the same direction no problem, but if they tried to go in opposite directions they wouldn't get anywhere.

I think this would be a really fun mechanic, and really it feels like what they had in mind with the ability, but kinda copped out and just made it a stun cuz it was easier. Whaddya think?