You insist without any real merit, that a wikipage is not the same as a wikipage. In principle all wikipages behave in absolutely the same manner, they were edited with exactly the same editor up to some time ago, when you a) tried to get so-called structured discussions, first with Liquid Threads, something that failed, now with a bit different layout system Flow, something that as well is stuck in limbo. But if you discount these, the article page uses the same syntax as the talk page, the user page uses exactly the same syntax as the talk page, with one of two available editors the can be edited in exactly the same way as everything else in the wikiverse. With the other one, the VE, you claim that these exactly same pages are magically somehow different, and one of them can't be edited in a wysiwyg-way.
BTW: Using colons to indent, instead of some software hack created by those many devs paid by content creators and talk page users, is frustrating as well, but you choose to ignore this for quite some time and preferred to create shiny new bling instead of boring maintenance. That's at the core of this, not the proclaimed, but not existing, differences between those pages. And the phab is just a strawman as well, if you mange to get templates programmed somehow, the indentation problem should be non-existing. Unles you deliberately choose not to do something about it, to keep this strawman alive.