Isn’t that more of a developer issue?
I think he's getting at the fact that there isn't a meaningful file manager or multitasking support in iPadOS. Each app is its own island, and it's very difficult to move data back and forth between apps. There are a lot of impediments to developers in the form of artificial restrictions in iPadOS. Apple is touting the power of the iPad, but the software prevents fully realizing its potential.