true, but sadly the scale is colloquially shifted towards the top end due to mainstream reviews.
a 7/10 is mediocre on the typical scale you see when looking up "professional" reviews.
this is annoying for many reason, not the least of which is the fact that it essentially is a 1-4 scale if you really break it down. where 1 = 6/10 and 4 = 9/10 or higher
a 6/10 might as well be a failing score, while an 8, 9 and 10 are just varying degrees of good and 7 is mediocre.
in reality I'd give the majority of games that I like a 7/10 at most, because they are often good but not special in any way.
with some games I like being a 6/10 due to being only slightly above average. like Astro Bot, if I wasn't scared that it would be misinterpreted as a typical Metacritic-like scale, would be a 6/10 for me