Science is the garden of knowledge from which engineers harvest inventions.
Tempered glass windows and doors already makes use of the understanding of compression and tension to create products which shatter into small harmless bits instead of large, pointed knifelike shards.
The understanding described in the article might make it possible to design car windows of tempered glass (which they do now) but with a built in mechanism to shatter the glass without the use of a tool. Some people carry a tool now to use during an accident to free themselves from a car by breaking a window. Instead, one could have a "Push button in order to break glass" mechanism near the door handle, basically building in the tool.
Or we could make a bullet out of it (and cut the tail off with a laser, so as not to shatter the whole thing). It’d be interesting to see what’s its ability to penetrate armored targets would be.
Alternatively, do the same with some kind of metal...if the same or a similar effect can be produced in metal.
Oh, and what about transparent aluminum...this is already in use for some military aircraft. Imagine if a window could be made super hard from that stuff!