I find that it demonstrates a clear lack of understanding of the liturgical practice of receiving communion.  It's picking and choosing on her part, as well; she disagrees with Jesus about calling God "Father" but accepts the particular method of distribution she imagines happened in the Cenacle?  
Jesus didn't set the standard for distributing or receiving Holy Communion, the Rite does.  Would anyone try to take communion in the hand at a Byzantine Rite service?  How does that form of communion square with the Last Supper?  How does the Maronite's?  Shall we all recline at table or other such nonsense?
I have no problem with the indult.  I choose to receive on the tongue though I needn't here in the US.  If the priest in Rome moves for the tongue, one should have the grace to accept it that way.
Someone else made the point that, at Vatican masses especially, receiving communion on the tongue ensures its consumption v someone palming the Host as a souvenir.