The GP comment was low-information, high-inflammation—that means flamebait, regardless of how correct it is or is not. I wouldn't say it even contains enough information to count as correct or incorrect, but YMMV.

A point being correct doesn't mean it isn't flamebait. Which correct points one makes, in which order, in what context, and with what extra baggage, all matter. People (especially internet trolls) often act like "but it's correct" is some sort of blank check—this is far from the case.

Sometimes the correctness of a point makes it even worse. An example I've used in the past is middle school kids pointing out the acne on another kid's face. An example pg has used is telling an old person "you will die soon".