Well, I personally don't find Consumer Reports to be all that flawed. You may not agree with them but that does not mean they are flawed.
For example: which is the better car, a Honda Accord or a BMW M5? At first glance, most people would say the M5 is a vastly better car. Now factor in initial purchase cost, maintenance, reliability, cost of usage. Now which is the better car?
Now, is a $3 wax that is easily found, easily applied/removed, but lasts only 1 week better or worse than a $70 wax that is slightly less easy to purchase, easily applied/removed, and lasts several weeks?
I would challenge anyone to prove that the tests are flawed. I would however agree that the criteria for what makes a wax good or bad is completely subjective and may not agree with the enthusiasts such as us.