I see your point but, if there is nothing to hide and a product has genuine merit, it will pass trials and be available.
I have no issue as such against 'natural remedies' - let's face it, penicillin is a naturally occurring mould, willow bark contains aspirin, etc. Indeed, many drugs companies are combing the jungles for the next new wonder drug.
It is also worth noting that the cost of developing and trialling new drugs is phenomenol. In which case, if a product is good enough, a manufacturer will be able to to persuade a larger company to sponsor them through the trials.
It may not seem fair but it's the safest method we have at the moment.