All reviews follow their own "logic"
The product is compared to a similar one which is MUCH more expensive and that one is better but you have to pay much more for that tiny improvement
or
the product is compared to a cheaper one and it is much better than that (of course, that is the reason why you have to pay more to get that "level").
You will hardly find a review where a product is compared to a cheaper one and that cheaper unit is much better.
No one compares the new product to the model before (the newer one is always better because it is more advanced and the "old" is dead anyway)....
Any product will get the same level of "enthusiasm", no one is interested to kick someone out of business. At the end, for most, "Taste" is important and it is the way a well know "reviewer" once said "I've never met a product I didn't like..."