Nobody said it was a big deal. Just that it's a move on LeBron's part. Which it 100% is.
Anybody who says LeBron was too "focused" can go themselves. If you're saying he was too focused on the court to see the kid, then basically you're saying LeBron is blind because the kid WAS PURPOSELY STANDING IN LEBRON'S LINE OF VISION IN ORDER TO GET HIS ATTENTION AND GET HIS WARMUPS FROM HIM. The ball boy is STANDING RIGHT NEXT TO HIM WITH HIS HAND OUT. All LeBron had to do was drop his pants right into the boy's hand. Instead he moves his hand further away to drop it on the floor. HE MADE EXTRA WORK FOR HIMSELF TO DROP IT ON THE FLOOR RATHER THAN PUT IT IN THE KID'S HAND. MOVE.
And then when he took the shirt off, the kid again got right in the way, and LEBRON SEES THIS, AND RE-ROUTES WHERE HE WAS GOING TO PUT THE SHIRT IN ORDER TO TOSS IT AWAY FROM THE KID ASKING FOR IT. Again, MOVE.
It's not a huge deal, it's not an issue at all. But it was 100% a ty asshole thing for LeBron to do to some kid. I don't get why anyone would try to deny it or justify it.