Are the teams pathetic for not playing? [I Love Football]

So at Old Trafford Manchester, United fans broke into the stadium in protest at the Glazers ownership. Yeah there were a few flares and a few scuffles with Police outside as well. But has Health and Safety gone too far because in previous years this would still have been played with fans in the stadium too.
Even the pundits on Sky Sports backed the fans who were peaceful but had broken in. So what your view.