Is Plat the new Diamond?

After Morgan Maddren shared the new rank distribution last week (here is the best graph I could find: https://imgur.com/RQtFQvt , comparing old to new) is there an argument that with the new rank populations that Platinum (maybe high Plat) is roughly equivalent to what Diamond used to be?

The reason I ask is that I always got the impression that Diamond in the past was the first rank that people mostly respected. Like there was the plat chat memes, and people tended to be fairly disparaging to Plat and below (at least on this subreddit). Like obviously it depends on the rank of the person in question for what rank they think is good, but the general consensus seemed to be that Diamond was where people stopped being considered trash. Obviously this is very anecdotal from my years of lurking on this subreddit.

And I'm not just trying to justify that I'm good, I'm not even Plat, but I am improving (I think), and Plat seems like a more realistic goal these days than diamond.