Honestly. Does it matter what score it receives? I've seen enough of the title to know that I am definitely going to get it.
And will your decision to purchase this be based on one person's thoughts of the title? A person who may have never taken to the track before - if someone like Chris Harris, Tiff Needle (I spell that correctly?) Or someone heavily involved in motorsport. Were to review this then I'd be more interested.
But to hand the decision over to a source that gives titles like COD and BattleField top scores..... Because they're COD and Battlefield.... Lol. Na... They can keep their opinions.
Reviews are important for commercial success. Not always - but they can be. They are often poorly made as you mentioned but they are "by casuals for casuals" and casuals may be the big part of the potential buyers.
The reviews made by those sites have in mind their readers - which are mostly not wheel equipped racing fans that understand what PC is - what was it's budget, the origins, the idea etc.
They don't care about those things. They want to drive some cars and have fun. For everyone who saw the game grow and what the SMS are trying to achieve it could be infuriating but that's how it is.
For example:
Us - we know why the car list is like it is - some of us may putt up with it even though we're not entirely satisfied because we know about licensing costs (and connections - see Kaz and VGT) and want the game to grow.
Casual market and mainstream reviews - they may have different views on this. It's interesting to see just how different and if some will share our approach to it - aka give the game a chance.
The guy in twitch stream the other days admitted that he's not into racing games but wanted to give PC a chance.
Also let's not stretch this "PC is unique, reviewers won't understand anyway" too far - PC shouldn't get a free pass because it's "special" or something. I'm also more interested about dedicated channels reviews - but then again I heard from the guy in Inside Sim Racing that GT6 and Assetto Corsa have "very similar physics - nothing particularly different" - which is simply absurd.
All in all - reviews can tell you things you won't notice on a video - like stutter or on-line stability but they are nothing more but another source of info about the game - some more informative, some less, some less biased, some with absurd prejudices ("racing game needs to be open world") but it's always a personal impression.
Ultimately it's up to us to filter all this info and decide.