Why is Malzahar's ultimate so susceptible to misclick cancels?
Malzahar's in a balanced spot, but his ultimate is so freaking prone to getting canceled by misclicks (if not canceled by poor timing into CC). IMO, there should be a 1-second window where you CANNOT cancel it (it can still be interrupted by the enemy), locking you into it for at least 1 second. Or you should need to press R again to cancel it, not right-click.
"But what if I need to break off in that 1 second?"
You probably shouldn't have cast Nether Grasp in the first place if you're in such a position.