I find it funny that we see complaints about why software quality has got worse alongside people advocating to choose objectively risky AWS regions for career risk and blame minimisation reasons.
They are for the same reason. How do customers react to either? If us-east-1 fails, nobody complains. If Microsoft uses a browser to render components on Windows and eats all of your RAM, nobody complains.
This was always the case. The OG saying was “no one got fired for buying IBM”. Then it was changed to Microsoft. And so on..