It has always been the person's problem to solve, even after this website.

No government employee is your lawyer. If the government gives you incomplete or wrong information, you are still liable for not doing the correct thing.

Having a website that does a best guess at what steps a person must take after changing a name or getting married is better than nothing, but the status quo isn't "nothing".

It needs to be kept up-to-the-minute updated and it can't skip any nuance / details. Does anyone here really trust the lackeys who spectacularly failed at DOGE to do boring and highly detailed work?