I mean they have both the Phases and Timeline sections that can still remain exclusive for Marvel Studios content. I just don't see any reason why they couldn't place the shows in the Marvel Cinematic Universe section if they do in fact still see them as being canon.That section is a list of Marvel Studios produced content that is essential to the MCU. It is not a statement of canon.
Disney+ sections and timelines are quite literally complete crap anyway. I'm sick of people talking about them to be honest...
So I think the reason for the delay of Morbius was toNow that would be interesting!add/ change references to No Way Home. And remove other Spider-Man references that wouldn't have made sense. I bet they didn't really have a "reason" for Adrian Tooms to be in the movie (especially if it was really completed in 2019), until they found a reason after watching No Way Home. Wonder if maybe all of the "bad guys" that were in the MCU "illegally" were transported to the Sony-verse, and somehow Tooms came along for the ride?
After Venom's success, I think Sony believed they could get away with acting like their universe was its own corner within the MCU. This is why there were references to Venom, Toomes appearing without the multiverse angle, and apparently, the Spider-Man poster was going to switch to Holland and the "Murderer" was going to be in reference to Far From Home's ending.
Then, probably while working on No Way Home with Marvel Studios, they agreed to use that movie's multiverse plot to confirm their universe was in fact separate. Allowing them to still loosely be connected to the MCU, without affecting it. This meant the MCU references had to be removed and the Toomes stuff was reshot to tie-in with No Way Home and bring him into their universe.
Then, probably while working on No Way Home with Marvel Studios, they agreed to use that movie's multiverse plot to confirm their universe was in fact separate. Allowing them to still loosely be connected to the MCU, without affecting it. This meant the MCU references had to be removed and the Toomes stuff was reshot to tie-in with No Way Home and bring him into their universe.