I don’t think bishops are supposed to make that kind of exception. Remember - it’s for the good of the individual, not the good of the church. If you aren’t confirmed into the Catholic church, we believe it harms your soul to take communion, because you don’t believe all that we think you need to believe, and you believe some things we believe to be untrue. It’s an awkward point, but it’s reality.
In the front of most missals it says something like “if the danger of death is present or other grave necessity the d. bishop can OK communion for Christians not in full communion with the Church”. I think such Christians would have to be in a state of grace and profess belief in the Catholic understanding of communion. I could be wrong, I reckon.
Freegards