Rome is still trading on these myths. For example, Vatican Information Service, 11 June 2012 reports:
Participants in the fifteenth World Seminar for Catholic Civil Aviation Chaplains and Chaplaincy Members were received this morning in audience by the Holy Father. Their patron, the Pope recalled, is Our Lady of Loreto who is also the patron saint of all air travellers, in accordance with the tradition that attributes to the angels the transportation of Mary’s house from Nazareth to Loreto, Italy.So, note that this usage of falsehoods is not limited to lay apologist groups, but goes all the way to the top of the RCC. At least today's bishop of Rome is careful to word the matter in a way that is not, itself, false. Yes, a tradition attributes what he says it attributes. On the other hand, it didn't happen as the tradition alleges. But that doesn't stop the pope from trading on the legend.