I take it that you've never had to work at a big organization? When you have multiple teams in different offices, it's incredibly difficult to constantly "herd cats" and point everyone to $latest_fad. And when you DO by some miracle get everyone (devs and management) to switch to $latest_fad, it's a huge pain to go back through and bug test/change every process to accommodate the new software.
I don't think "people should stop making and switching to new things" is a fair distillation of the parent comment, as it seemed like they were just expressing frustration at the blistering pace the Javascript community is setting.