Is this supposed to happen?

Several of us were knocked down by what I presume was a seismic grenade after I picked up the ball from the center console, after 2-3 seconds of playing turtle the ball was stripped from me and handed to an enemy player.

I wasn't killed, I still had full health but the enemy now had the ball. I've been trying to determine what could possibly have done this as I definitely didn't throw the ball and it was in my possession.

Has anyone seen similar behaviour? Would be very harsh for a CC to strip the ball from players.