What implicit baptism of desire pertains to is INDIVIDUALS joined to the true Church (without being members of it) by sanctifying grace, and therefore saved.
I find it amazing that any Catholic could possibly believe that there even are ANY individuals who refused to become members of the true Church whilst they lived, but believe it a (dogmatic) teaching of the Church that these same individuals, via some good intention, joined it anyway moments from their dying breath - and on that account were saved.
What ever happened to "the road to hell is paved with good intentions"?
The idea that man can save himself is a heresy - no?