Therefore this does not solve the problem that Sally has not received a Declaration of Nullity concerning the first attempted marriage, and the related problem that she and her present husband cannot get their present (and only) marriage convalidated in the Church.
Do you --- seriously--- think relying on the "internal forum", already excluded as a solution by the Holly See, is to be preferred to a reform of the marriage law in which their pastor could make a Declaration of Nullity under certain circumstances?
"Josephite" marriage --- with no sexual relations --- St. Paul himself says that people can abstain from marital relations only by mutual consent, for a time. For Sally to impose this on her husband unilaterally would be a violation of the spousal debt.
" The husband should give to his wife her conjugal rights,
and likewise the wife to her husband.
For the wife does not rule over her own body, but the husband does;
likewise the husband does not rule over his own body, but the wife does.
Do not refuse one another
except perhaps by agreement for a season,
that you may devote yourselves to prayer;
but then come together again, lest Satan tempt you through lack of self-control."
1 Cor. 7:3-5
I think you may have misunderstood my post. I was not suggesting evasion or "internal forum". The point of going to another church is to avoid causing scandal at their present church where their situation is known (only if they chose the Josephite marriage option, of course).
Do you --- seriously--- think relying on the "internal forum", already excluded as a solution by the Holly See, is to be preferred to a reform of the marriage law in which their pastor could make a Declaration of Nullity under certain circumstances?
Of course not. And a "reform" of the marriage law that effectively undermines the Sacrament doesn't seem like a good idea either.
For Sally to impose this on her husband unilaterally would be a violation of the spousal debt
Perhaps if he were actually her "husband" that would be relevant. However in the eyes of the Church that is not the case.