I'm just tired of the 'everyone follows their immediate incentives while the system stays incoherent' as the de facto reality. I think shedding some light over the actual mechanics would maybe make someone consider 'perhaps we shouldn't allow our acquisition team just turn off their brain and choose the default to cover their bottoms; maybe vendors are worth more decision investment via actual thinking instead of performatively ending up on the default choice after a little ritualistic game of "eeny, meeny, miny, AWS"'.
I think it's worth pointing out that Jeff Bezos would fight this tooth and nail from happening in his companies. He popularised 'process as proxy'. Yet AWS as sold to external enterprises is the exact proxy Bezos warned against internally. Do what Bezos does, and even what Bezos preaches, just don't do by default what Bezos sells.
It is refreshing actually. They can accurately answer questions on how everything works and there is no subsubsubprocessors to worry about.
This is stupid. This protects you from having a risk to have to do small things (very small things), and updates, by increasing the risk you have to redo everything all at once. It's eliminating a tiny effort by massively increasing systemic risk.
It would, by the way, be a very good business and SRE exercise to actually trip those small risks from time to time and fix it.
Otherwise: ask Iranians what happened to their AWS accounts when Trump decided to sanction them. Ask ICC judges what happened to their email and visa cards. Everything just stopped and died. Is that what you want for your company?