You witnessed aerosol going right through the mask material. Poor fit has no effect on that.
If you actually look at the video, it does NOT "pass right through the mask material". I've seen a couple of videos pretty much identical to this, and the all show precisely the same.
Point 2....the particles generated by "vaping" bear zero chemical similarity to the liquid drops produced by the human body.
The only "truth" of the video is that it is propaganda..