If what you are saying is true, then why can’t I access the missions advertised in trailers outside of the career mode? What possible reason can Asobo have to make me suffer through hours and hours of flying boring sightseeing missions I don’t want, just to access the content I bought the game for?
(One reason coming to mind is that they hope it’ll take me so long to get there, that in the meantime they can fix at least some of the game breaking mission bugs 
)