I've heard 1-14 days with an average of 3 days, but I'd have to dig up sources. But even if the long incubation periods are rare, they'll still have an outsized impact.
Mean is a type of average. And for communicating to the public, unless there's a strong reason otherwise, statistical jargon should absolutely be avoided in favor of more universally understood terminology.
Even worse, this is a total blunder, I meant 'median'.