It is not at all clear to me what valid reason there cold have been for the denial of communion to these people. If it was on the grounds that they were politicizing the Mass, it was the Minnesota bishops themselves who first introduced the politics to their congregations. If it was because Catholics were daring to show their dissent – this is a right and obligation specified by canon law. If it was on the grounds that these people were “homosexuals”, this is false – participants were declaring support for an oppressed group (a very Catholic stance), not necessarily gay or lesbian themselves. If it is that gay and lesbian Catholics were declaring their identity, this is just another instance of DADT in church.