"It’s tempting to add extremely opinionated styles, for buttons for example..."

These plain canvas-like themes have until now been a choice for those who prefer it (those who like to design their own thing), but this article makes it sound like these types of themes should be the only choice in the future of WP.

This is worrisome to me as a non-designer who looks for themes specifically based on things like attractive button styles.

FSE sounds bad for people like me, who aren't artistic, can't coordinate colors, and want themes to do the artistic stuff.