Well, now you remind me...
Back in 1983 I was contracted by Northern Telecom (Later Nortel) in England to do some work on the BIOS code that they had for a PC compatible system they were selling.
Turned out that the hardware and hence the BIOS they were dealing with came from the then unknown company NOKIA in Finland.
Turned out the variable names and comments in all that code were basically in Swedish.
Let's just say that tackling thousands of lines of x86 assembler in Swedish was a challenge.
As such I don't see a few common Greek letters used in equations where they are expected to be seen as an issue.
But now we have the possibility of non-ASCII identities in Rust we can expect to see all kind of Rust crates written in all kind of languages that are not clear to the English-only world.
Welcome diversity !