Either this or it's a young person who recently started, had a looser mouth with his friends, and hasn't figured out how professional culture is and that not every John or Jane wants to hear that.
If someone think a company with 200 people won't have at least one saying inappropriate things, that person is kidding himself. It doesn't mean it's acceptable, but I'd basically have to conclude every industry and every company on the planet is bad since this stuff is more pervasive than people realize.
Of course not. But it reflects poorly on the company still as working for a company, you become a sort of representative for the company. That's why professional behavior is taught. It especially reflects poorly for Naughty Dog that even had an official statement of not tolerating this behavior. Could be a bad personality read of a new hire, but still you don't want this