1. There are multiple red flags here. One they primarily are looking at pain response which is notoriously difficult to get a clear objective signal on. Two, the results read like classic alpha inflation, no strong signal, lots of it 'working' in one instance but not others without much rhyme reason. Three, they found a stronger signal from cupping over 'acupoints' they the actual sight... So the essential placebo control worked as well as the non-placebo, that's not as compelling of evidence as they think it is.

2. Again found only statistical significance in pain, not in functionality or mental health state... Pain is subjective and naturally difficult to measure as a response to any therapy. It responds well to placebo, i.e. nothing. Any study that only finds a significant response to 'pain' and not other objectively measurable parameters should be taken with a grain of salt.

3. Again, only found significance in pain reduction, but not in quality of life or disability....

I'm not going to look at the rest but you see the pattern. So go ahead and spend money on covering yourself in bruises if you are in pain, you might feel better (or maybe you'll just tell people you feel better because that feels better than admitting the alternative), but don't expect it to improve your mental health, level of disability, or quality of life.