You're mixing my statement with your own technical problems.External drive support is not legacy.
the cloud is the present and the future for many things, but thinking that it can replace external drive support is silly. Uploading gigabytes of work to the cloud requires wifi, which is not always available, is slower (and it will always be slower), more espansive and less green. An external drive is cheap, extremely portable, always usable and green. Also, iCloud photo library IS very slow and it is NOT a backup. A couple of months ago about a hundred of pictures disappeared from my library, taken at different times, with different camera. There was no way to get then back from the cloud (they were deleted even from the mac), I was saved because I always do a local backup.
Legacy is that, legacy. It's a word. And I already said there are good reasons for people to keep legacy workflows, and for that, there are Macs. Nothing bad about it.
On the other hand, complaining about this on iPads is like a whiny child. Like I said, Apple did not just stop selling Macs. They still do.
If you buy iPad and expect traditional PC-like experience, you don't know what you need.