Nah man it's just odd. They never sound like someone genuinely talking to people, it's like a prepared statement , that's how they sound.
It says nothing about posting the video on social media neither so the video to go with it was made for press so to speak at a guess.
Now fair enough if you want to scare people that way to comply , the skeptic in me says part of the story isn't emphasised as he has pneumonia as well which will be the reason he is holed up in hospital.
Just, if you want people to take them more seriously then have them talk like normal people in their messages, get the point across a lot more impactful.
It’s like when an inexperienced police officer takes a statement off a member of the public and it’s littered with “ police speak “ :
“ I was driving my car in a westerly direction “
The public don’t talk like that lol