Here's one use case: while I don't use this particular GUI, it really does help when you have some columns containing RTL text such as Arabic and you want to browse through a table. RTL handling in most terminal emulators I've used is really lacking, though I can't blame them.
That's actually a really interesting case I had never considered. I actually just took it for granted that RTL in the console was a solved problem
Not just in consoles. While RTL is solved for most cases, I generally avoid writing Arabic in code for example (hard-coded strings, regex, etc) and just use Unicode escape sequences. Some issues include ASCII punctuation appearing (visually) in the wrong order and very awkward text selection
One day I set out to resolve this, though I can not find in my notes' files what the solution was (for MySQL). It might have been to simply use MyCLI instead of the standard MySQL CLI. Have you tried it?