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.
Entities like LTT have a very large audience and the opinion they put forward tends to influence a large crowd. Dishonest reviews about an emerging startup could ruin their customer basis.
Well, this is MKBHD who has an even larger audience
And is known primarily as a reviewer.
LTT do some reviews, but that’s not their primary focus.
Or, to use your example, reviews that don’t understand the product or play it for laughs. 😅