Can't see anywhere where it says that tickets can be purchased on that page. All it currently says is that Everton are in the Montafon area from 11.07 to 16.07.
Having said that, it's the pitch for a mountain village football team, so there are hardly any walls and doors to close unless they are going to finance England-type screens around the ground.
Ppl will still go, it's like the sion one years ago... It's at fc glom schruns