The main thing was the frequent use of "where" in place of "were." Another thing that jumped out at me was the omitted words in the introduction. If you'd like me to go back and proofread, I'd be happy to.

Thanks for an insightful article.

I enjoyed this writeup too, but was also distracted by the errors. I do a lot of proofreading; I'd be happy to send you a list of editorial corrections if you feel like it is worth the time.