I didn't read the whole thing, but one thing I noted was that it looks like their results are based on 'user specific training', i.e. with a model specific to o

I didn't read the whole thing, but one thing I noted was that it looks like their results are based on 'user specific training', i.e. with a model specific to one persons hands, typing patterns, etc. Generalising this will then surely be a lot more difficult.