I guess that makes some sense. It's still pretty weird to me though, the big difference with a press release is that the press is writing about an announcement

I guess that makes some sense. It's still pretty weird to me though, the big difference with a press release is that the press is writing about an announcement that the company made. So it makes sense to describe the company in third person. If the company is writing for themselves they should just announce that they want to announce rather than announce their announcement.