As for the arguments that prayers for non-Catholics is somehow awful, I remember my mother, who like the rest of our family was Episcopalian, telling stories of attending Notre Dame in the 40's (the Catholic girls school in Baltimore, not the Indiana University) and one of those stories was the nuns and her fellow students razzing her for being a heretic. Then everybody thought it was a laugh. Nowadays the school would probably be sued out of existence.
And from a purely technical view, I believe that is correct. Episcopalians used to not be "Protestant" in the strictest sense of the word. Nowadays, of course, they ARE screaming moonbat heretics, which is why we are now Catholics.
But in the old days we caught flak from both sides -- the Catholics looked at us as "Catholic Lite" at best, while the "real" Protestants thought we were, if not the Scarlet Woman, at least her handmaiden.