Cyrillic as around twice the characters as the English alphabet. If you don't know it's Russian, you wouldn't crack the code because you wouldn't see the pattern if you were looking for 37 characters.What? How did Carter decipher a one-time pad encryption out of memory? That just isn't possible even if she had some kind of mutant power like Cipher...
And even ignoring that, since the cryptographer apparently had the same power, how does not translating it into Russian prevent him from recognizing coordinates? /brainmelt
I agree with you on the "one-time-pad" thing.