… Shouldn’t the church constantly be analyzing for itself whether the structures it has set up defend the faith or hinder people’s approach to it? …
Yes.
And that’s exactly what the Church does do.
I’ll give examples later.
As for the topic at hand. That’s exactly what the Church is doing.
Finding a way to have low-gluten bread that is valid matter for the Eucharist is itself an example of the Church adapting to new technology (1000 years ago, no one knew about gluten, much less did anyone know how to bake low gluten bread).
My question is why do you characterize the Church as not doing something (ie adapting laws) when** that’s exactly what the Church is doing, and is doing quite well?**
This is like that annoying question “why doesn’t the Catholic Church do anything for the poor?” Which really means that the questioner doesn’t bother to first learn that the Church does considerable work indeed.
Obvious examples of the Church adapting laws (since you asked specifically about laws) to make the faith more accessible to people:
1917 Code of Canon Law
Allowing afternoon Masses (an exception to the 1917 Code)
1983 Code of Canon Law (why? because the old one wasn’t working anymore)
Sunday Masses on Saturday evenings
Allowing low-gluten hosts
Allowing low-alcohol wine for alcoholics
Pope Francis changing laws to make petitions for nullity less stressful
Jubilee Year giving every priest faculties to absolve from the crime of abortions
Pope Francis giving faculties to SSPX priests to hear confessions
Pope Benedict
Summorum Pontificum
Pope St John Paul II allowing national bishops conferences more control over Holy Days
Restoring the permanent diaconate
Allowing people to substitute some other form of penance for meatless Fridays
Reducing the Communion fast from midnight to 3 hours, then to 1 hour
Vatican directives calling for handicap accessible entrances to churches
Pope Francis “Missionaries of Mercy” dispatched during the Jubilee
Vatican website–adapting information dissemination to changing times
Pope St John Paul II appointing international Cardinals, especially from the global South