Yes, but in this case there was one rod tested twice, once before breaking and repair, and once after the repair. It gives objective data on power and action, numbers, not terms like "med-light." It would be very valuable for a person who has a favorite rod and is trying to duplicate it, but the exact rod is no longer available. The favorite rod could be tested, then a candidate second rod could be taken home from the store, and tested. If the numbers were not close enough, it could be returned. Of course the process does not damage the rod or blank. If a rod is found that is close in the numbers, it will be close in the feel, power, and action. I recently received a new blank and before even testing it I thought it was very close to another premium blank that I like. When I tested it the numbers were almost identical.
It was originally developed for fly rods, and the info below focuses on fly rods, but it may be used for ANY rod or blank. Exc possibly for the really heavy salt rods where flexing them to a deflection of 33% of their length doesn't make sense or cannot be done.
http://www.common-cents.info/