It happens often:
Neighbourhood children playing together get into a scuffle. Parents defending their own enter the fray. Next day the children are back playing together and all is forgotten. The parents, however, retain their anger for a lifetime.
In any case in the follow up news story the neighbours seem to have put it in the past. I think that many more people are quicker to take offense than in years past. I also don't think that rights of free speech have to be limited to appease sensitivities that are trivial.