I know what you mean by if you don't have nothing good to say, say nothing. But in the instance of something like;
"Ride to Hell: Retribution"
(Wiki)or
"The Room (2003)"
(Wiki)Both this video game and movie don't have much going for them. I agree there's no need to be overly critical and bash it to death with hate.
It's true what you say about reviewers, it's so "mainstream" and popular now there's lots of cheap, uninspired reviews out there. Sometimes I wonder if some of them aren't just reading the cliff notes on books written about said movie and talk about it as if it was their knowledge and understanding.
And yes, we need to keep trying to push for better variety in vocabulary and keep it rich, it's important, sadly not everyone grants it that importance....
Personally I'm very careful with reviewers, reading/watching them give me a general idea, but I always like to make up my own mind. And if someone says things like "it's too cartoony" or "there's too much story" (gametrailers did one like that, too much story, really?!) then I don't even finish the review or pay attention because obviously you have nothing intelligent to say.
Thankfully I have my wife to discuss in depth about the entertainment we enjoy. We can talk for hours about the dept and complexity of characters in Better Call Saul, analyzing their motivations, their relationships, etc. (I mean there's lots you CAN talk about too with that show) Always more entertaining talking to a friend or loved one and turn that into a type of review or discussion then watching some of the junk people trow out on the internet.
Finally - Here's one reviewer I REALLY enjoy on Youtube, I belive is higher quality content (not the best produced, but good script) ;
Noah Caldwell-Gervais - Just look at the length of his Mass Effect Review.