Adobe also claims that Fonts are Software. Because most Fonts wouldn't be copyrightable beyond the Name of the Font because they lack innovation. Software, on the other hand, doesn't require innovation.
Not everything is copyrightable. You certainly can't draw a circle and claim copyright infringement to any other circle.
So it depends on the Font. Is it really copyrightable if you take a public domain typewriter font and convert it to a sans serif font. I don't think it is enough.