I think it’s more about who holds the decision making power - Disney is not the majority shareholder for the Shanghai park, so they didn’t call the shots on when it reopened. Plus they’re just totally different countries in terms of COVID19 statistics. So I don’t think it makes sense to assume WDW will be closed for the same number of days as Shanghai, which is how this ‘analyst’ seems to be making their prediction.
but what procedures that Shanghue has done should not be done in the us outside of temp checks masks and QR code’s?