Earlier quoted context omitted.
When text becomes selected, instead of allowing the control to work as expected, the focus cannot move between the elements as expected. It breaks the UX for keyboard-only users. I can appreciate that this is not something everyone has to contend with, but for accessibility's sake, the default behavior should at the very least be mitigated. So you're advocating for either hurting the keyboard experience or injecting…
I personally like to click text absent mindedly when I'm reading a bit like holding your finger while reading Also if you're a non native speaker you want to be able to select the text so you can translate it
And, more pertinently, why should I support it, at the expense of keyboard-only users?