No no, I don't think you are being rude at all. I'm well aware of bias in research as well as other prevalent issues (non-reproducible published is rampant). I am NOT trying to silence your opinion. I hope none of your comments are hidden, if so I will go back and adjust.
We also cant reply on a lot of data as its published by the manufacturers
Not a factual statement. You can rely on good data, however should look closely at data with disclosed biases, and even closer at data with later discovered undisclosed biases. Manufacturers are quite capable of publishing material that is well done, many of which will even publish material that exposes flaws with their products because science is what it is. Not all companies are unethical monsters ;)