It's what the default is. TUIs default to fast, stable, high-information-density, so you have to real work to make them otherwise. And I say this next part as primarily a front-end developer the past few years: web apps default to slow, brittle, too-much-whitespace "make the logo bigger" cruft, and it takes real work to make them otherwise.

At the end of the day most people are lazy and most things, including (especially?) things done for work, are low quality. So you end up with the default more often than not.