Those videos are very interesting. Such a project seems a lot more ambitious to me than the relatively straightforward glove I am building! 
I will definitely test what you have suggested with using the glue as the sensor as soon as the materials arrive and I can make a batch. I am afraid it might not work simply because the conductivity between two surfaces (i.e. touching them together) may not be nearly as good as the conductivity inside the material. That was my trouble with many of the fabrics I tried as well as the original wire glue I've been using. It works to solidify electrical connections between two points, but the dried glue touching another bit of dried glue is not nearly so conductive.
However, it's definitely worth an experiment, since if I could eliminate the fabric, that would cut down the cost a little and the build difficulty a LOT (no cutting, pinning, gluing, or sewing). I'll let you know how it turns out.