The paucity of available information about these patients should induce a much more cautious approach about commentators in mainstream media.
We don't know:
--- demographics of patients (except for age, we haven't info about job, travel, citizenship (a part the 'resident' status in a country or another), reason for the movement abroad, people they've seen, socioeconomic status); these people could be as wealthier enough to be treated and medvac from Arabic Paeninsula to high skill institution abroad).
--- clinical course: very few data were released about timing of infection, symptoms, treatment regimes, diagnostic tests, chest objectivity etc.
--- anatomo-pathological findings during necroscopic examinations, useful to distinguish between tissues damages from nCoV and other possible co-factors;
--- serosurveys in contacts;
--- possible link between patients (are they part of a group of people of 'interest', politicians, diplomacies, businessmen?).
Before starting to say that - as Mr Osterholm - the epidemic valve is opening, I would suggest authorities to disclose more on these patients and the reason behind their prompt diagnosis.