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However.
I will now take this opportunity to vent a bit, though it has little to do with your imminently reasonable post. Mostly because I am procrastinating on porting a 3rd-party SSO system from a very old and shitty WP site to a new and shitty WP site and it's hurting my brain to decide how much of the mess of jQuery and bootstrap I really need to keep.
So hopefully this will be understood as venting and not a personal attack against your reasonable observation.
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Consider that there are those of us who have to fix the first group's problems and make things keep working so they don't have to care how the sausage is made.
That is to say, there is a very real third group of folks: those of us who support the first group.
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I've been doing that work for about 14 years for all kinds of folks. I host 300 or so WP sites for a mid-sized university, I built and maintain a .gov site for a three-letter-agency, and I've built plenty of react-based blocks (across 3 majorly different patterns because the GB team doesn't give a fuck about anything, as far as I can tell).
I've worked on every element of WP from deploying servers to fixing CSS so it works in IE6, to scraping non-availible CMSs so that I can migrate thousands of pages and tens of thousands of images to WP. I've written plenty of WPCLI commands to do dumb tasks, I've written plenty of shit-tier code to make, say, calendar events propagate across the bad-for-most-purposes multisite functionality.
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Someone has to know how the sausage is made. I do.
And I know the difference between the teetering pile of steaming crap that is WP.
I've worked on actually useful codebases in my life with tooling that is easy and databases that are grokkable. I am aware that other platforms have issues, and have encountered them in my work.
However, WP is really bad.
And I have no problem bitching about it- I'm burnt the hell out and am about ready just quit and live in my truck and play music.
It's a shitty platform, and people do not pay well to keep it working.
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So anyhow, yeah, you've got a fair point, but there those of us who, because of circumstance, keep heading back into the burning building that is WP and our collective hatred of the platform is well-founded.