"Physical activity, he said, pools blood in the lower half of the body, reducing blood flow to the heart. In response, the heart pumps more vigorously. In people with NCS, the brain misreads that as high blood pressure and tries to lower the pressure, which leads to decreased blood flow to the brain and, thus, fainting."
I like how it sounds like an engineering flaw. Hopefully one day our software will not be bound to randomly generated aging hardware.
Web is independent, thus making tools for it is both no one's and everyone's concern.
Mobile/desktop platform providers on the other hand are typically worried about developer experience and thus e.g. you get XAML/QT instead of patching HTML with Bootstrap.