Even if it's possible to type the syntax, there's also the speed of typing. How fast can I type "omega"? Pretty fast. How fast can I enter a unicode omega code point? Probably not as fast.

How fast can I read "omega"? Pretty fast. How fast can I read an actual Greek letter omega? I don't read Greek, and my physics classes were decades ago. Yeah, I can figure out that it's an omega. It might take a bit, though...