I think the argument could be made that the last traditional (some might read that as "real") castle park was Paris. But I'm not necessarily against them evolving the overall castle park concept in newer markets, like Hong Kong or Shanghai, AS LONG AS they respect the heritage and tradition that already exists at the older four castle parks. The issue is not, IMO, that the newer parks try something different, but that apparently they are incapable of respecting each park/resort as its own entity with its own needs. Instead, now every park is basically treated like Shanghai Disneyland, which isn't necessarily Shanghai's fault but is symptomatic of other problems within WDI and the directives from the top.
To be honest, Shanghai is the park I'm least eager to return to, and part of that is the different feel of it vs the other resorts, but part of that aren't necessarily the resort's fault (one of them being that getting in and around China is a bit more of a process). In park, however, it wasn't that big of a deal. I still maintain that experiencing a park in person vs judging it from a computer is very different and that every Disney fan with the means should go to all of them, instead of going back to WDW or DLR for the 30th time.
What resonates as important within the framework of a castle park is going to be different for each person, but for me the greater losses at SDL are the lack of a train and an IASW. While you (and I) value many of the attractions you listed, it's also true that Disneyland Paris gets by just fine without a Tiki Room, Jungle Cruise, or Splash Mountain. And I can't entirely fault Disney for paying closer attention to what they thought would play in Mainland China after they got burned for making arrogant assumptions about their audience in both Paris and Hong Kong.
In terms of some other points:
-We both agree that there is no such thing as a good Toy Story area and that 7DMT in any context is underwhelming (though WDW did get the better version).
-The WDW Pooh is their default for whatever reason (Pooh makes $$ in most markets, relatively cheap cost to build). If I was in charge, it'd be Hunny Hunt or another ride. But at any rate, it's hardly the first time they've stuck direct clones of existing rides in the international parks and it won't be the last. From their perspective, they have save money somewhere, hence direct cloning.
-I'm ok with the Hunny Pot Spin in place of the tea cups. It's still functionally the same ride. And is it fair to penalize Shanghai for having two Pooh rides next to each other when DL has two Alice rides next to each other? At any rate, we can all enjoy the irony of two Pooh rides in a country where WTP is banned!
-Sure, new Soarin' is mediocre. No argument there. But I can't blame them for building it and it plays like gangbusters to the Chinese audiences. And while I'm sure it doesn't live up to Tokyo's version in terms of polish, the presentation of the attraction and queue is much nicer than either of the US parks.
-Given a choice, I would have preferred a Main Street, BUT 1) The Chinese have no context for and no reason to be nostalgic for 1900s small town America, and 2) Disneyland Paris' Main Street is so exceptional that I'm not sure it's possible to top it. If a concept has already been executed to its best possible level, it should be acceptable to move on to something new (much in the same way that if a TV series has hit its peak, it should be allowed to end and not be forced to meander on for another five years). And in person, Mickey Avenue works better than I would have expected.
There are a lot of legitimate reasons to critique Shanghai, but I get tired of reading critiques (not from you specifically, but in a general sense) that basically penalize International Park X for not being exactly like Disneyland or Magic Kingdom when they have different needs and serve different guests, cultures, and Disney directives. More often then not, they were designed as their own thing, even if they borrow from existing experiences, and should be treated as such. As long as Disney gives the same level of service as it does in the other parks and provides a great experience and great attractions, that's what matters.