That is a little too reductionist. It can hold a lot of things. Millions of people get all of their facts and information from live video. A lot of it is delivered by cable tv right now, but in the same way that TV news overtook newspapers, Facebook will overtake cable. People have watched moon landings, walls falling, and the birth and death of democracies, all live--and there were always advertisers paying the bills.
I know that we're in the middle of an awakening of sorts about personal data, but that doesn't negate the value that services like Facebook can offer. I may be naive, but I think this is a step in the right direction.
Advertisers are just a bunch of people paying money to blast our ears and eyes with spam about their products. They're not philantropists. They're not financiers.
Facebook is a vehicle for said spam, disguised as a social network. Yes, it has to offer some value, otherwise no one would stare at the ads.
Putting Facebook and advertising in charge of providing facts and information is a stupefyingly bad idea. It's already shown that it can't provide either.
And if they really want to do it, then they should be regulated.
I agree that regulation is a good idea. Throughout history, news and facts have always been provided to most people by groups with vested interests in controlling the prevailing narrative. It started in churches, moved to papers and has taken a lot of forms over the years. Moneyed parties have always used their resources to sell products, ideas, and agendas via these channels. Companies like Facebook are different because they allow near-universal access.
Facebook doesn't provide the information, they provide a platform and tools for anybody to be a publisher. Anything they can do to improve the platform is a good idea.
All this is to say: Facebook has done a great thing by bringing Randall and co. on board and should continue to bring new ideas and talent in, through whatever means they can.