Unclear how the arguments against feature flags can be used to justify hardcoding them or using a JSON file to manage them. Feature flag decisions are at the end of the day, tradeoffs to solve a problem that may occur for another person at a different place/time. If you are a solo developer, hardcode, use bytes or mail your feature flags - it does not matter. If you are not, there is a lot to take care of beyond a single hardcoded json file.

I think if we have a large population of generalists, then none of them are generalists after all

I believe they would still be called generalists.

Germans prefer Deutschland, no?

so Deutschland is not affected. Germany is