Yeah, maybe instead of complaining about that complaining, it would behoove folks to take it seriously and make a study of prior art a part of their workflow. Those cyclical-nature complainers are a great resource for pointers!
I've found this to be true. Helped me solve lots of problems in highly-assured systems and INFOSEC. Hint: I just started with stuff people did (currently) almost 40+ years ago with some of foundations nearly 60. A lot of it still worked in similar contexts. It's why I drop so many links and references to prior art here.
After you've seen the same mistakes repeated with a cycle of about 15 years, that happens.