You are quite correct. I'm from Eastern Europe and consider your own reaction if I right a tool which has a name in cyrillic and every time you need to use it or search its functionality, you need to perform a complex incantation trying to remember the exact steps to generate something that at a glance looks just like "рир".
I use such characters every day because my native language has them, so maybe that's why my tooling is naturally chosen/adapted to support it.