Yes, it's definitely the Cedar Ridge parents that seem cocky and/or pretentious in this exchange, and not you.
Considering your posts are almost exclusively pertaining to Vista Ridge, or disparaging other programs, I'd be careful with the way I speak on boards like this. You represent your program to the community, and going as far as to kick a program that had a rough season when they're already down is pretty ridiculous and immature.
The message you responded to, was obviously a student hurting from not making finals, but they still went out of their way to uplift Vista Ridge.
I've seen plenty of Vista parents, both in person, and on community platforms, represent their band in ways that I disagree with, but I don't let it effect my viewpoint of the talented kids on field. It seems you could learn to do the same.