I think it’s more that MTP is an awful protocol than anything else. It’s slow and flaky even under OSes that support it. It’s shocking to me that with all of the brilliant people working for Google, nobody has managed to figure out a better replacement.
Maybe I've just been extraordinarily lucky but it's been nether of those things for me. It's also far superior to Apple's go through iTunes/Finder garbage protocol IMO.
Not saying that Apple has anything better, but I really don’t feel like the problem is adequately solved on Android either.
The easiest thing in my mind would be to use USB mass storage, with the storage presented to the connected computer being virtualized with a layer reconciling changes with actual storage on the fly (which the current MTP implementation already does anyway), solving the problem that USB mass storage traditionally has arising from two systems mounting the same chunk of disk at once.
That would work everywhere and remove the need for a bizarre protocol borrowed from Windows XP.
