[buffington]

That's not what's being compared. It's the rating those things received compared to the rating of the phone.

I think it's fair to include the ratings of the highest rated [whatever] to compare to the ratings of another [whatever].

The author is saying "even people's favorite things don't get such high ratings."

[rahkiin]

Better would be to ask everybody who watched Shawshank Redemption: ‘were you satisfied with the movie?’. A 9.2 on imdb is not equal to 92% satisfaction due to granularity in the answer options

[hombre_fatal]

Also satisfaction doesn’t mean you’d rate something a 10/10.

[camillomiller]

It’s a completely different methodology!!! Are they comparable just because they express the final value as a percentage?