[coldtea]

Uploading/Downloading project files of a few GB, where a 300-400 MB can be added in just one additional session, doesn't work very well with iCloud and current BS connections.

So for a lot of people the experience would be subpar (with their 2-20MBps assymetric DSL etc). Not, Apple could only enabled for speedy connections (symmetric, fiber etc), but then tons of users would cry for being excluded.

That's not how Apple usually rolls.

I'd say than when the speeds are mature enough, in 4-5 years, there would be a version of Logic with iCloud support.

For now, they can leave it to third party providers, like Dropbox, so they get all the blame (and/or praise, for those that are content with that).