Because font choice outside of large strokes like fantasy fonts is meaningless.

All of this exposition only works if people are literate in typography enough to get it. Most people can't even understand literalist art, say nothing about the symbolism of typography.

It's like how the Victorians invented a whole meaning categorization to different species of flowers and then acted like it was universal law. It's a secret in-crowd code. It has no inherent meaning.

Could you clarify what you mean by “meaningless”?

How you can conceive a literate society that is not affected by type. The fact that general literacy is apparently declining is beside the point but we remain surrounded by letters and words, the shape of which determine how we comprehend what they point out. Planes, signs, screens depend on font choice to be effective. Newspapers and memoranda too.

The degrees may vary but the significance of a font choice just can’t be as simple as you make it seem. Just only to the extent of the value the public ascribes to the type-bearing object. Granted, we may be assigning too much to US State Department documents. But who’s to say?