The question is: Because this is a liquid and the kevlar is "soaked" does this mean that the cost of production is relatively inexpensive and therefore less costly to the consumer for the up-graded armour? Riddle me that---
The article (unless I missed it) never specifically mentions motorcycle apparel applications, it seems fairly generic, but leaning a bit towards protecting against ballistic and piercing damage. They do mention helmets and gloves, though, and so maybe this technology will filter into future bike garb.
Make it into a spray, and skin becomes instantly toughened! (until it kills you).