If his point is "I don't understand what split times are", then yes.
Shooting someone "right now and well" involves hitting them quickly and accurately. And since "gunfights" involve shooting people more than once.....I guess split times are relevant.
That's not the first time that "split times" have been mocked here. And it's only because of the lingo, which I find absolutely absurd. If you replaced "split time" with "shootin' yer smoke wagon real fast and hittin' wut yer aimin' at" then everybody would be on board.
