More on cristianos and catholics: Quality, not quantity?

Elio Masferrer Kan,  head of the Asociación Latinoamericana para el Estudio de las Religiones, argued that INEGI's figures on religious adherents are wrong and that catholics make out not 83.9, but 82.72 percent. Big deal, you might tell yourself - and that would in any case be pretty much what Manuel Corral of the catholic Conferencia del Episcopado Mexicano seemingly responded:


"[Corral] minimized the decline of Catholics in the country. He said that what matters most to the Catholic Church is the quality of the faithful rather than the quantity (!)


What on earth does that even mean?