They didn't acknowledge that it has gotten lazier, they've acknowledged that people have said it's gotten lazier. In fact they say it hasn't been updated since early November
> we've heard all your feedback about GPT4 getting lazier! we haven't updated the model since Nov 11th, and this certainly isn't intentional. model behavior can be unpredictable, and we're looking into fixing it
This contradicts itself each sentence and sounds as if it was written by chatgpt itself in lazy mode.