Yes, that would be a better response provided the officials did their job. Of course, had they been doing their job to begin with, the entire situation would have been avoided.
True, as evidenced here. It allows poorly trained authorities to show they are "in charge" rather than using good judgment. 
A perfect example of why coaches are excluded from input on judgment calls, their job requires they are too involved with their team. Unless you were at this game, or personally know these officials, suggesting the officials weren't doing their job, based on this clip, is a silly, purely defensive reaction and there's no bus near enough to effectively deflect blame by trying to throw the officials under.
I couldn't tell whether the player, in white, injected himself into his opponents gathering, or the opponents, for whatever reason, decided to gather where the player in white was standing. I also couldn't tell what else may have been going on, otherwise on the field
Not that it matters, but based on this clip alone, I wouldn't have flagged the situation, but I wasn't at the game and have no idea how that particular coach was behaving up to that point. Absent any previous problems, I would have considered this incident not deserving of a flag, but worthy of a quiet comment and suggestion the coach catch his breath.
There are few things in life that bring out the beast in someone as quick as a trying teenager, that anyone having lived through multiple puberties (the first being your own) can attest to.
