My take on this is no they don’t. As long as they are truthful they only report on the quality of the product and prevent many people of spending a lot of money from losing it by buying something that doesn’t work.
If your product is shit your company does not deserve to be shielded from the backlash, this is the core of (classic) capitalism after all.
I looked up what it would cost for me to buy one of these and run it daily.
After conversions and shipping, it would be $1100 to get one in my hands. It would be $50-60/month (Pin sub + data phone plan) to make it functional. And when the company inevitably folds in 1 to 2 years (or any of the companies they use for processing), the entire thing will turn into e-waste. It has literally zero on-device processing or functionality nor can it piggyback off your phone. It will turn into a paperweight.
This thing is a scam.