None of this means that these features were necessarily “left out”.
All we’ve seen other than Developer documentation is a 40 minute presentation almost a year out.
I think it’s obvious to anyone paying attention that there will be another (probably 90-140 minute long) event solely dedicated to the headset a couple weeks before it's official ship date.
There, not only can they show off everything they've already shown again, they can also invite third-party developers, who at that point will have been working on the headset for months and months to show off what they've got.
And then, just like the original Apple Watch, we’ll probably see a preview of visionOS 2.0 only a couple months after 1.0 ships at WWDC24.