When they have a recommended OS with their brand name on it (Raspbian/Raspberry Pi OS), it's a platform feature. Either I'd expect the hardware to provide some minimal battery or something for safe shutdown, or I'd expect the software to handle sudden power-loss gracefully. They provide both the hardware and the software, there's no way for blame to leave their ecosystem.
Raspberry Pi can't redirect blame for filesystem problems if the user is using an OS that's called "Raspberry Pi Operating System".
I applaud your user-first attitude to responsible branding, but we all know open source software and economics of mass production cheap boards don't work that way.
Raspberry Pi can't redirect blame for filesystem problems if the user is using an OS that's called "Raspberry Pi Operating System".