It's not a bullshit, but the best offline typing way. When your abbilities are good for it, certainly.
Bullshit is to type people by questionnaires only (especially short and primitive as the one recommended on this forum) and by photos, as it have no enough information about nonverbal behavior.
For your better understanding. According to experiments on socioforum, typing by random videos (several) gives max and average match not lower (average was higher a little) than typing by questionnaires and questionnaires+photos. Hence it has not less objective basis for typing, at least. Also it's more funny to type by videos.
If a man will say something useful for typing in a video-interview (as it's typing video, not random), - then the accuracy should be higher. A questionnaire may be made as an addition, so questionnaires-funs may ask for them and in many cases get them.