I actually noticed only two grammar errors while reading the article, even though I read the article after reading your comment. Now when I go back and look at

I actually noticed only two grammar errors while reading the article, even though I read the article after reading your comment. Now when I go back and look at the article again I see more errors, but since I (a native English speaker) didn't notice them when I read the article for real, they weren't a problem in this case. I've read articles that I started hating because of all the English errors, but this article doesn't even come close to that level for me. I don't think this article deserves such a long rebuke for bad grammar when I had so few problems reading it.