Poor Paris, it's no Orlando and never will be
Sorry, I am honestly not having a go at you and appreciated your trip report, that just made me chuckle a little!
In general, though, I can understand why people have different perspectives on Disneyland Paris. My impression is that if what visiting a Disney park or resort means to you is WDW, the adjustment to DLP could be jarring. It's not warm and tropical, the resort is far more compact, the pace is a lot more relaxed, and it is also more European than American in how it is run. In terms of seeing the backside of attractions and that taking you out of the immersion, I will say that you don't see those kinds of things when you stay at the resort where you do have more of that "Disney bubble" experience.
Regarding maintenance, my impression is that WDW probably does a better job of maintaining the exteriors of the buildings while DLP in recent years has done a far better job of maintaining the attractions. It does surprise me how rundown WDW will allow some attractions to get, honestly. Admittedly, I have never experienced the bigger issues in Paris such as disgusting toilets that have been discussed on here and don't find maintenance a big issue any more on my visits. Except, maybe, ToT, which they never seem to have figured out how to maintain as it has been unintentionally mouldy and falling apart almost since it opened.
In terms of attractions being better or worse, these sorts of comparisons are not hugely compelling to me. I think I would tell someone coming to Paris after being used to WDW that Paris has unique takes on existing attractions rather than better ones. Must admit that after hearing the Paris Pirates was far superior to the preceding versions I was a little underwhelmed when I first rode it and I am still not entirely convinced that is the case. I do enjoy the attraction a lot, though. I much prefer even the Star Wars version of Space Mountain to the Florida version, on the other hand, but I understand that if Space Mountain means the kind of experience you get in Florida you may have a different feeling.