Are you kidding???????
He was LAUGHING on the sidelines after the interception. It's RIGHT THERE ON THE VIDEO you linked.
The question was a completely valid one. The reporter was right on and, in fact, was WAY TOO POLITE in the questioning.
Lemme ask you this, if Bledsoe during his worst games of throwing off the back foot EVER pulled something like that on MNF laughing on the sidelines with Max Lane, would YOU not want a reporter to at least deign to ask his Highness about it?
My favorite part of the video is where DA says "I wasn't laughing" and the reporter tells him it's right there on the screen and DA does a 180 and starts spewing,
"That's fine, that's fine, that's fine....." before finding the motivation and words to muster up a new head of indignation.