Honestly she could have done better putting it in those terms rather than attacking it the way she did but you nailed it. It's really expensive to cover large and disparate geographic areas with that kind of thing. There's definitely examples of smaller companies emerging and wiring up their entire rural towns with fibre optic, although the one I'm most aware of kind of foundered when the town ended up selling it to the big phone company after they couldn't pay something like 18 million in debt which gives an idea of scale and challenges for getting lasers to homes in just one town [1]. And on the other hand I've lived in much smaller third world countries where you can get FTTH pretty much everywhere even in small towns, mostly doable because the area to cover is just super small.
[1] https://www.thealbertan.com/olds-news/town-of-olds-selling-i...