You conflated that with sitting too far away. There are a lot of reasons why that might not be correct, including presbyopia. I think it's unlikely OP is sitting at that distance by accident, since it's pretty easy to move a monitor closer, so one of those reasons is more likely to apply than is your assumption.
For now I stand by my assumption that OP wanted the fonts to be bigger because they were too far from the screen to read them at their current size. Though I fear I can't see why their reason for wanting fonts to be bigger would matter. I could have omitted OP's reason for wanting the fonts to be bigger but I thought a brief description would help keep the discussion related to the article.
The main thing I was advocating was that software should allow fonts to be bigger regardless of physical size, but clearly I've somehow allowed my argument to be horribly misconstrued.
> But I find the fonts slightly too small at that resolution – given how far I sit from the screen.