Why did you? Since you asked, I shared my opinion, same as you shared yours. You invited the sharing of opinions. Don’t criticize others if you can’t handle being criticized.

If you agree your comment was pure opinion, that implies you knew all along that the article was not “abusing” the comma per se.

I don’t know what ‘oh dear’ is supposed to mean, but did you read either Wikipedia article? The first one supported the article’s use of comma, and the second one explains my brief summary you quoted. It’s not my opinion, but that of many language experts that policing other people’s use of language necessarily imposes class, race, and region preferences on others. You should probably be aware of that fact when you choose to share your opinion on other people’s writing, especially when your opinion doesn’t seem to be backed up by the encyclopedia article on commas.