A practical and down to earth treatment.
Noting: “Absolution must be preceded by a desire to avoid that sin again.”
I can well believe that the remarried who are trying to live as brother and sister are entitled to absolution and communion.

Amen. The core there is that we are absolved from sins we let go. But that bit everyone agrees on. It is the other ideas suggesting that God can just ignore the sins WE are holding on to and declare us forgiven anyway, ala Protestant Lutheran, Calvinist core ideas, that is where debate is. But that is the bit that is also hard to defend of course, unless one finds even more doctrines to chip away in the attempt to create a support for one wrong and also very old belief.
Indeed, I have seen obviously intelligent people here unwittingly resort to all sorts of wrong ideas in an attempt to defend the Maltese and similar positions. Each time, with each new angle, each new stab, I am even more convinced that the position is inherently indefensible. It always takes them back to the same dead end which is essentially a reharshing of old and settled debates, many with attached anathemas, whatever direction they try, whatever “new” insight they think they discover in scripture in the effort to mount this frankly futile defense.
Watching this has made me wonder if Catholicism is a bit “booby-trapped” in the sense that the only direction you go once you deny one truth is three of four other more untruths! And its not lesser but even more fundamental untruths too that must be chipped away at to defend the one! Examples: The infallibility of the church, the final revelation of God to the world in Jesus, the inerrancy of scripture, the lordship of Christ in the duty to obey (and not just believe) him, the nature of salvation, free will, the efficacy of grace…There is just no way to justify the one untruth you are attached to except by “supporting” it with another untruth even if that is not your intention. I think its just the problem of trying to reinvent the wheel 2 millenia later.
But I do wonder if this is part of that protection promised by Christ to the church, part of that guarantee. It makes sure that even “less” truths (to our eyes) which we might be tempted to do away with for convenience, stay intact.