Update - submitted through Feature Request option, please disregard.
I use two languages on my keyboard, and English is used much more frequently. It would be very handy if I could turn flow off for my second language as my keyboard often assumes I'm using flow for this language after using shorthand/single letter words like "u", "a" or "I". Since it's a second language, I'm mostly comfortable with using the keyboard without flow anyway. I would assume others may also have this issue?