Blame the Latin alphabet (Score 1)

Computers were first developed for using the Latin alphabet and variants, and are most easily adapted to languages compatible with that. Other writing systems are somehow mapped to that, which is inconvenient, confusing, and prone to standard-problems. It's not surprising that most Internet communication takes place in the default Latin context... if and when voice-oriented content becomes more common and usable, there will be fewer reasons to limit oneself to a certain alphabet.