Granted, I wouldn't consider this a personal attack. But it definitely qualifies as negative and nonconstructive.
I literally can't imagine how one could argue that they "broke the web"; that's completely ridiculous. If the migration path wasn't explained very well, why not say that? Or if you find configuring the tool confusing, and would prefer it to have "sane defaults" in the absence of configuration, why not say that? Instead of calling it terrible and blaming it for the "javascript fatigue era".
They realized that what had once been "sane defaults" were no longer sane, so they removed them. That's it. I can accept that there were legitimate complaints to be made, but the hyperbole and general negativity was over the top on this one.