I'd love to help summarize this article, but I only have access to the brief blog post you shared, which doesn't include the actual content of Tanswell's article "The Enshittification of Mathematics" from the Mathematical Intelligencer. The post simply recommends reading it and praises the role of philosophers of mathematics, but doesn't describe the article's arguments or findings.
If you can paste the full text of Tanswell's article, I would be happy to write a clear and engaging 3-paragraph summary for mathopen.com. Alternatively, if you have access to the key points or arguments from the piece, share those and I can work with that.