As someone that historically relied on an iPad Mini for media consumption on the many weekly flights I take, it is not realistic to download 10+ GB of content directly onto the device. Especially since I don't use Apple's ecosystem of media and generally rely on my own, I find myself using the VLC app to watch content that is loaded via iTunes and its ability to load files as you would any other document app.

The "use case" of connecting your devices to your computer is still alive and well, despite being in the era of cloud.