You have a good point, we cant deny that this "fake reviews" practice is happening everywhere. That's why we should not rely on reviews completely, we should be able to filter which reviews are honest and which reviews are fake. This is why this forum is very helpful, I will only trust reviews made by users with good trust or good experiences, obviously there should be valid proofs of the review as well.
And don't you think that with the crypto ecosystem being generally unregulated, bad reviews need not to go unanswered by engaging these guys in forums they have a presence to come clean as its the only way to regulate them as their reputation is on the line if they choose to be mute..
He didn't say put a blind eye to such reviews but rather should not rely on reviews completely. We all know that most of them are paid reviews, so they are writing the article in a biased manner. You can assess what they are saying if you have actual experience on that platforms. They can always come clean but for you, you know what's the real deal.