My only disagreement. I think many people don't know they want something better because they've never used something better. The video in the link describes how the users do short texts to get around the problem [0], including deleting whole blocks of text instead of editing. Teenagers, parents, and many others communicate heavily through texts and are often "up and down" like management/business users. On the whole I believe many people would benefit from a better text editing experience.
[0]: https://programs.sigchi.org/uist/2021/program/content/61484