The article does _not_ discuss why engineering teams ignore that advice.
Companies see microservices as a silver bullet for solving complexity. Inexperienced engineers attracted to shiny things jump on the bandwagon. Vendors sell tooling to deal with the new complexity. But in that case, if it wasn’t microservices, it would be OOP, FP, SPAs, RPC, RDBMS, NoSQL, etc. The problem is the hype cycle. Over-use of microservices is only a symptom.