How? Every single TUI app i have on my system has its own look and feel, down to even using different keys for the same or similar tasks. At best a few have vi-like hjkl keys for movement (but no number prefix) and some might use ? for showing the available keys or some sort of help, but there is pretty much zero consistency beyond that.
At least in comparison the overwhelming majority of GUI applications agree on things like what Ctrl+C/X/V, Backspace, Del, Arrow, etc will do and they tend to react the same when you press the left mouse button on something that vaguely resembles a push button or a check box (most also agree how scrollbars work, though not all of them).
You could, but it's not exactly a great comparison. Contrast with Apple's history of HIGs and similar for a company that puts effort into consistency. Where's the equivalent in the TUI?