Not wishing to defend 'traditionalists', or to make their position any easier...
But I don't believe that Fr Flannery actually has been excommunicated. What has happened, I think, is that he has been forbidden from ministering as a priest in public. He also seems to have been threatened with excommunication. But it hasn't actually happened.
The article (above) suggests that his case is rumbling on, in the CDF.
Perhaps Steven's question might be re-phrased as follows:-
"A good priest gets disciplined by the CDF [etcetera]..How pathetic is that?"
[Unless Steven had another priest in mind? In which case  I'll get my coat.]