"Sadly, we've had to cut the tour short, the May 8 Mexico D.F show has been postponed due to the flu chaos and the restrictions that have been put on shows in Mexico D.F over the next days/weeks. We are obviously not happy about this – but it is out of our hands. We are looking at quickly re-scheduling the show and return to Mexico in August. The 2,500 tickets for the sold-out Mexico D.F show are valid for the new date - so hold on to them"
I read an article in "El universal" and they said that the DF Goverment has allow the open of stadiums, theaters, bars, etc. Maybe The organizers had to wait for a little before postponing the concert.