OK.

The Unthanks and anyone else for that matter are not only in the business of entertaining us, they also have to make a living. I would never attend an all standing event, however, if it is advertised as an all standing event, I or anyone else has the choice to attend or not. I really don't see what the problem is. If you don't want to stand, don't go, simples. There is no need to slag them off about it.