Thank you. I was wondering about that nun part.
Now, the question is, since the Scripture says for us to live the life assigned to us, are these folks who were Episcopal and Lutheran ministers really coming into the priesthood due to a calling or is this a back door way to force the celibacy issue?
You'd have to ask them what their motives are. However, ordination isn't automatic for any of these men. Not every married former protestant minister who converts and applies for ordination is accepted and in the grand scheme of things there have been relatively few since Blessed John Paul II issued his pastoral provision back in 1980.
One detail that you are most likely unaware of is that these converts who are seeking ordination must agree, prior to being ordained, to adopt the discipline of celibacy for the remainder of their life if their spouse precedes them in death. No agreement, no ordination.