[duskwuff]

Quite honestly, both companies have enough exposure through the media that losing their Facebook pages is unlikely to make much of a difference. (Especially for a company like SpaceX, which was mostly reaching individuals who weren't in any position to do business with them.)

[xauronx]

I would assume a company that size could potentially have at least one person who's full time job (or sizable portion of their job if social was a low priority) was to maintain those pages.