The naming braille display makes more sense than most. They do replace a text output terminal and even work very much like a raster display with small height dimension. The users of the devices also probably also map sensing of it to parts of their visual cortex.

With sight being the most developed sense, we often default to language that refers to it. And many people are visual learners. We have expressions like "I see what you mean" being used to communicate technical matters and "I feel you" or "I hear what you're saying" to convey more emotional things. "I get what you mean" or just "I get you" can be used for either.

Even when studying Human-Machine-Interfaces and ergonomics in school, we were always talking about displays and controls. It's no wonder we have touchscreens for everything now. I wonder if we're going to get a generation who don't know what it's like to drive by feel and sound and smells of burning oil and rubber or other things with non-visual feedback loops. Perhaps another good reason to learn to play an instrument.