No?
If you try to hook a Tracer when she starts blinking, the hook will break. Same goes with Genji’s deflect/dash and Reaper’s wraith form. Hell, it even happens with McCree’s roll sometimes
But if you try to hook a Mei when she starts Iceblocking, the hook will pull her out of it and the ability will go on cooldown.
And by the way, it has been confirmed to be a bug.