Telling someone "you have a vocation to thus-and-such" is out of bounds. That's something they ultimately have to determine for themselves in prayer and consultation with spiritual advisors (not high-pressure salesmen, spiritual advisors).
Telling someone "you have a vocation to thus-and-such, and may go to hell unless you obey it" is way, way, far out-of-bounds. Anyone who has that line tried on them needs to run fast in the opposite direction, no matter who's giving it to them.
If the story is accurate, that kind of high-pressure stuff is far from being in Opus Dei's best interests, because it ends up making numeraries out of people who poor sales resistance and low self-esteem, instead of an authentic vocation.
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