Just because they got the dates wrong doesn't mean that they got the trend wrong.
"Correctly predicted 10 of the last 0 eco-pocolypses" comes to mind.
[Adjust the figures as you see fit, but the latter won't come close to the former.]
That's a very narrow viewpoint. Several species and ecosystems are certainly going through eco-pocalypses even right now. Lots of very poor people have also gone through their own versions of eco-pocalypses