Providers want to act as gatekeepers who have the power to make something popular by limiting your options to alternatives. Sometimes they also want to be able to accept money for heavily promoting specific things over others. It's not about delivering a quality product to you at all, it's about what gives them money/power at your expense.
Between deliberately bad search and a bias towards pushing you to waste time rather than entertain, they bury their own content and deliver swill.
Netflix got away with it because they were the only game in town. Disney really broke the seal and delivered a good platform. Apple is delivering strong content that compensates for the horrific application.
Though people's rankings seem crazy to me. Apparently just producing a Star Wars thing and not totally shitting the bed in the process counts as "exceptional". Then again... yeah, that's kinda true, I guess. From a certain point of view. Still, better than nearly all shows on all those services? Yikes. I dunno about that.
For that reason, it doesn't really make sense to focus on the specifics of a handful of outliers as unreliably ranked by RT (I think). The real message is that large as Netflix' catalog is, it doesn't necessarily have a lot more highly ranked content than other sites have. (Which roughly squares with my anecdotal impressions.)
The data would be more interesting if it could be broken up by demographics. My wife (along with a lot of women) likes reality tv, and Netflix has a fair amount of that. I personally can’t stand it.
I guess it would depend on discoverability.
But, part of the trouble with this analysis, as far as sussing out the above issue, is season-count. How many Netflix originals are as long as, say, The Sopranos? Or The Wire? How many are only one season, or maybe two? It's possible (possible! I do not know) the hours-of-original-content difference between Netflix and the other services isn't as large as this suggests. Or that it's even larger. Hard to tell.
I'd say that this chart points toward bad things for Netflix, but without some other pieces of data it's hard to tell what it's actually saying.
Netflix has significantly more in the outstanding category: for example, I count around 8 for Disney, 11 for Apple, 10 for HBO Max, 8 for Hulu, and at least 39 for Netflix. I don't know how you call that a draw.
And I don't really care about the average show, since I (and I suspect most others) are not uniformly randomly sampling movies to watch with zero input from others. I (and I suspect others) watch those that are rated as good movies, and in that case, Netflix is crushing the competition by the numbers in that chart.
Netflix, by that chart, provides a lot more shows rated good, outstanding, and exceptional.
There are a lot of ways you can interpret the info and a lot of good questions that it doesn't really answer. But it is interesting that Netflix clearly looks different from others.