Because not attending press conferences is very serious, Uefa are set to take action against Manchester United. Now look what you've done referee!!!! LOOK WHAT YOU'VE DONE!!!
Uefa are really good at making sure justice is done, which is why they have responded within 24 hours to make sure that important media obligations are carried out. Luckily this isn't a racism or match fixing case because then there would be all this boring paper work and it would take like eight months, and if you just ignore it everyone will forget anyway. Just like that court ordered injunction I have. If she refuses to shut her curtains, it's not my fault if I've figured out how to break in her house