I have no idea where you worked in Amazon, I am guessing you did not. Having worked there for years in software, there were exactly ZERO technical managers I me

I have no idea where you worked in Amazon, I am guessing you did not. Having worked there for years in software, there were exactly ZERO technical managers I met that were not either previous software engineers or technical project managers (e.g. CS degree). That is of hundreds at all levels, including VPs and most SVPs. Reorganization tends to happen at the VP level and is less overall than Google or MSFT in cycle length and size of disruption. All of the "silly things" are Amazon giving people freedom to innovate. Not all of them stick. The alternative is to never do anything.