Why people concentrating on creating more hacks on top of fundamentally ill-suited stack for app development, rather then rethink the whole stack from the first

Why people concentrating on creating more hacks on top of fundamentally ill-suited stack for app development, rather then rethink the whole stack from the first principles? Luckily, after 3 decades, there is some sobering realization that typesetting engine is not a good foundation for modern apps. https://news.ycombinator.com/item?id=34612696 https://news.ycombinator.com/item?id=34612696 Web development without HTML/CSS/JS is the future.