I'd question why your "head of Communications" isn't already aware of alternative vendors for important pieces of their domain.

I don't like the guy, so it's not like me to defend him, but perhaps because he's busy being the head of the Communications department, instead of a tech nerd?

My company produces thousands of pieces of communication each year in many different forms. Video is a small part of what his department does, so you make the false assumption that this is an "important piece" of his domain.

I wouldn't be surprised to learn he doesn't have some internal cronjob to constantly search for alternatives to every single one of the (probably hundreds) of vendors we have around the world.

It's very weird that you feel that you're in a position to second-guess a person you never met, in a job you've never done, in a company you don't know, in an industry you also don't know. That's Olympic-level hubris.