Don, you bring up an excellent point!
For that matter, Office Furniture presents very much the same situation. The power conductors are not shielded, but in a nonmetallic jacketed cable, and the Cat5 wiring is often run right through the same chase. EMI should run rampant.
(Maybe this raceway would cut down on the number of personal-use heaters one finds so often in offices, I should think it would generate plenty of heat)

So, do you believe that this product can be applied as advertised? I sure don't.