I don't think we disagree about anything except, possibly, the danger posed by disseminating differing information and views.
I'm not defending "the guy," just objecting to the response he got for posting something that is true - brief, outside contact with another has never been identified as a likely form of virus transmission. I think it's unreasonable to expect someone to know a poster's entire posting history in order to comment on one specific post.
I don't believe someone passing another guest outside at Disney is going to transmit the virus because nothing the CDC has said to date supports that conclusion. That said, Disney is a major theme park, with outside lines, fireworks displays, parades, etc. where people may be in close contact with each other for a significant amount of time. Given the sheer number of people and the crowd dynamics, it would be impossible for Disney to enforce any kind of mask requirement without requiring that they be worn at all times. It's an enforcement issue, not an issue with people getting infected from passing within six feet of someone without a mask. I don't believe that information is too dangerous for people to handle. You may disagree.