Forcing channels like Facebook to be neutral carriers only makes sense if they're a natural monopoly, which they aren't.
The same cannot be said for Facebook or Google at the moment even if some of us prefer Google+, HN, Twitter and Duckduckgo personally.
(That said Duckduckgo can go mainstream soon for what I know and Google+ is IMO constantly one or two good and well timed moves away from eating Facebooks userbase.)
Twitter, Facebook, YouTube, etc are de facto worldwide communication channels. The degree to which they are the totality of communication is a function of their popularity, and this is the reason why it is so desirable to control speech on these platforms.
Personally, I'm disgusted that twitter is the official medium of the POTUS.
Yes, it is good to have more transparent insights into what the POTUS is doing. I just think that Twitter being an official policy platform for the country is concerning. Further, I think the impulsive and childish nature of the current POTUS should be severe cause for alarm.
I think it actually speak volumes about those who surround the POTUS and what a poor job they do as "handlers" -- shouldn't we have far more professionalism at that level?
But to your point, it was previous that this made it easier to spin the angle that the public sees...
It just makes me lose faith that anyone at the supposedly most elite positions really know what they are doing - they all seem so incompetent and looks like idiots, and it makes me want to acquiesce to their authority even less. Basically, it undermines and de-legitimatizes the power structure.