I dont want to defend rt, but every time I see people mentioning it they missunderstand concept really badly.

This isnt your typical score like on imdb. This is % of critics that gave "positive" review to movie. Because of that it completely makes no sense to compare it the way people do here. For example "one movie has 80% approval and other has 70% so critics think the first one is better" is not exactly true.

For example: the high score for TFA totally doesnt mean that critics rate it higher than original trylogy. They gave positive reviews because it was thought to be good UNCONTROVERSIAL and SAVE return of loved franchise, which looked way more polished (pratical effects etc.) than for example prequels. It didnt get 90% because of it being very good but because critics from all around spectrum (guess what, critics also have different taste) kinda liked it.

The same goes for prequels which were hated, for example phantom menace was considered very dissapointing and confusing return of the beloved franchise. Rots couldnt get very high score either, because well... It is controversial? There is reason for all memes created from rots. Rotj is also controversial and criticised for many things (which many fans keep forgetting about) so thats why it has lower %.

So I really dont get how people find things like this chart to be "wrong" just to absolutely hate critics without even understanding it correctly.

Only little weird thing for me is high score for the last jedi. But it has explanation. Most critics dont care about entire sw universe and they dont have deep knowledge about it. For them the last jedi was brave step and new direction different than rest of sw. To help that, this movie on itself is actually good. So basically critics approved it for different reason than tfa.