It’s not even that deep: Deleted Scenes are mostly boring, inconsequential garbage, and the DVD era bore that out pretty clearly.

Nobody really cares about Deleted Scenes because once the curiosity factor of them being easily available on discs dried up in the 2000s, people basically recognized them as not much more than what they ended up almost always being: one-time-watch fluff used to pad out the “bonus features” listing on the back of the box. The only people who still consider them to be items of note ARE fan-editors because they’re the one niche audience that still NEEDS them for their own projects.

Documentaries, gag reels, commentaries (maybe) - that stuff still carries some weight with viewers/consumers. Not so much Deleted Scenes. I don’t think it’s a reflection or referendum of “Disney oversaturation” or anything like that. It’s probably just a combination of “people don’t really care a lot about these so much” and “these deleted scenes are so far removed from what the movie ended up being it’d just be confusing and weird to plop these on the disc, unfinished and without context.”