Fonts are one of the dimensions of design. If you've ever enjoyed, for example, one of Edward Tufte's books on visualisation ("The quantitative display of data" etc), part of their appeal as excellently crafted books stems from the choice of fonts. The same happens on the web. See, for example The New Yorker: https://www.newyorker.com.

Obviously everyone is free to block fonts, just like you can block all images or use a text-only browser etc. But to categorically deny even the possibility that well-chosen fonts can enhance the experience for some people seems disingenuous.