I would rephrase this concern as "dconf is not a stable API" rather than "you are not supposed to do this". It's my computer, I am supposed to do whatever I want, but using unstable API comes with costs that should be understood.
I don't think the Gnome devs share that view.
GNOME devs are infamous for actively fighting users' desire for customization. They have a long history; here's[¹] an example from a couple of years ago (not sure how the situation described evolved); this [²] is an article that describes the wider point of view.
[¹] https://www.osnews.com/story/133955/gnome-to-prevent-theming...
[²] https://igurublog.wordpress.com/2012/11/05/gnome-et-al-rotti...
If you want a custom desktop workflow exactly to your specification build it yourself or pay someone to build it. Expecting people with different opinions to do it for you for free will certainly be a disappointment.
This is largely the case:
https://www.redhat.com/en/about/press-releases/gnome-desktop...
As stated in https://lwn.net/Articles/600506/: "When a project is controlled by a single company, that company's needs will almost certainly win out over anything that the wider community may want to do."
The few OSS tools I know to not have a terrible UX are tools built by a single author or a small team with a coherent vision. It's definitely a place where the bazaar model of software development doesn't seem to work as wonderful as with OS kernels or development tools.
However, I think the GNOME 3 and 4 designers went too far and alienated many users:
https://www.zdnet.com/article/linus-torvalds-finds-gnome-3-4...
https://medium.com/@fulalas/gnome-42-the-nonsense-continues-...
https://www.reddit.com/r/linux/comments/wte7tr/gnomes_design...
https://linuxreviews.org/GNOME_Developers_have_Made_Their_Mo...
https://www.osnews.com/story/133955/gnome-to-prevent-theming...
When a designer's "coherent vision" eclipses the needs of the software's users then users get frustrated and either fork the project or go to another project. MATE (https://mate-desktop.org/), Cinnamon (https://github.com/linuxmint/Cinnamon), and Unity (https://unityd.org/) exist largely because of how far the GNOME 3 designers went and how they were not willing to compromise their "coherent vision":
https://bbs.archlinux.org/viewtopic.php?id=121162
https://blog.linuxmint.com/?p=1910
https://web.archive.org/web/20101129161856/http://www.pcworl...
Or use a DE that allows sufficient customization.
They didn't even acknowledge or leave the bug reports it caused until this month: https://gitlab.gnome.org/GNOME/gtk/-/issues/5872 despite it being introduced in 2014 and me reporting it 2 times every year since then. And there's about 0% chance of this bug being fixed despite them finally leaving the bug report there instead of closing it.