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.
Bad products lead to bad reviews, bad word of mouth, and bad reputation… which can - and does - kill companies.
But the first thing has to be true for the others to follow.