[theophrastus]

from the web-page:

    It does not require training data - instead it uses statistical information about the frequencies of the letters and n-grams in the English language.

and from this it should also be noted that it won't apparently be able to extract passwords, as least those which aren't "n-grams in the English language".

[asimpletune]

This would be a good argument against the xkcd philosophy towards passwords.

[normie3000]

Unless when typing your password you deliberately use different fingers than you would when typing normally