There is never an "extreme necessity" to attend Mass. Receive the Sacraments, yes. But attend Mass? No. People sometimes confuse the two. One might say that in an extreme necessity one might receive the Sacraments through the Novus Ordo, but that doesn't equate to making it OK to attend the Mass. Either the Mass displeases God or it does not. Period. Now, even if it displeases God, in extremis it may be permitted to receive Holy Communion consecrated at such a Mass ... if one has no other alternative.
If there's no extreme necessity to attend mass, then how can there be an extreme necessity to receive Holy Communion? The former is obligated under the 10 Commandments/Church Law about 60 times a year; the latter only 1x a year, and only under Church law. Seems to me that there isn't a necessity to receive Communion, when safe/moral masses are unavailable.
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Yes, people are obviously confused and the allowance was not explained adequately by either +ABL, nor +W. And that assumes the allowance is able to explained, which is debatable.
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Agree, the new mass displeases God for sure. But there's a whole host of reasons why. And 3 of the main ones concern validity - that of the priest, of the consecration and of the mass overall. One would have to have 100% certainty that the priest/consecration were valid before they would even know if the Holy Eucharist is present! And how can anyone know this? Most people don't know about these issues, so advising them that they could go to Communion only (but not take part in the mass) is confusing. They should just keep it simple and avoid it altogether.
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But let's say you knew an old priest who was ordained pre-V2 and he used the most "conservative" canon prayers so you could be sure that the consecration was valid. If you knew enough to investigate all this, then you'd also know the deficiencies with the new mass, and it's philosophical evils, and its attempt to undermine the True Faith with its protestant liturgy. Knowing all of this, could you honestly have a guilt-free conscience in attending a fake mass in order to receive Holy Communion? If the mass is a mockery, then Christ's sacrifice on the cross is mocked. But one would ignore this in order to "get something" out of the service? It makes no sense.
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The catholics in England were martyred rather than attend an Anglican mass, one in which the only change (at first) was a philosophical one, that is, the mass was offered without the pope, in honor of King Henry VIII. Catholics died rather than be part of this schism and blasphemy (and the Anglican communions would've been valid, let's not forget). Yet it's ok for one to attend the new mass, which is FAR worse than the Anglican heresy, and which has FAR more blasphemies/sacrileges involved? It makes no sense.