According to the Dallas Police Chief, the dead killer was killed by a robot

[Stinky The Clown]

75. If you took the OP for "cheering" you're quite wrong.

As to the use of a "bomb" . . . . that's a detail that isn't clear. Technically, a firecracker is a bomb, the same as a MOAB. There were no reports of buildings toppling or walls opening up, so it is probably safe to say it was a very small bomb.

Would there be as much concern if a police sniper took him down?

The DPD used what they had on hand to great advantage. An active shooter was threatening more active shooting and the detonation of bombs in the area and (it was reported) right there around himself. What I was commending was the clever use of a tool not intended for such a situation. In the end, the idea proved a good one and the event was ended.

Yes, the perp was killed.

In any situation like this anywhere, the perp is commonly killed. A person who has already committed deadly acts with deadly tools continues to be a threat. The job of the cops is to end the threat.

Look back on that gorilla incident a few weeks back. The gorilla had the little boy in his control. Animal experts considered the gorilla's behavior an imminent threat to the boy. The humane ending would have been tranquilizer darts. The experts' opinion was they could not afford to wait for the darts to take effect. And so the order to use deadly force was given. The situation in Dallas was analogous to that. The BIG difference was the gorilla was NOT at fault while the Dallas shooter absolutely was.

Given that this was really an ad hoc solution, it seems to me it was a good one.