> So, my home grown architecture is stupendously simple enough that I could train another developer, depending upon the developer, on it in 30-60 minutes.

Then it is not complex enough to support the needs of large projects.

You admitted it yourself. You work with a small group of people in small projects, but you got huge opinions.

Building a bespoke framework, for nothing of value except because you want to, isn‘t investing in developers, it‘s creating a huge cost factor for no gain.