Adding comments with a low rating to 1 season applies to other seasons as well?

I added a review + low rating to a season. It looks like that rating applies to all seasons.

E.g. The Crown season 1+2 they were outstanding, for me, I would rate them as10.

Season 3 is disappointing, boring, etc. In my review I rated it as 5.
When clicking on season 1, I noticed that it was rated as 5 as well...
I changed it to 10, but my review was also adjusted to 10.

Not sure whether this is correct...

I could not remove my review so as to add proper rating to season 1 and 2.