from an engeneering perspective, it looks like there is starting to be less differences between the tablet and computer lines. I am sure somewhere in some lab they have the ipad running OSX and the rMacbook running iOS. I hope that they do resolve this in the next release or two of the OS.
For example i use my ipad with a keyboard cover a lot. and some times when working on it, my wife will hand me her macbook air to edit something she is working on. as I edit i keep touching the screen like if it was my ipad only to be frustrated when i realize i am on a macbook.
I know that MS surface is a mess, but the idea of having a touch screen full blown OS is not the reason for the mess, it is MS implementation. I hope Apple figures it out and does something slick soon.
Hey!
The thing is; Microsoft made the first move into tablet market because it is known to be a "helpful/good" thing in most cases according the current management studies. Microsoft, had to compromise on the touch experience (in terms of implementation into the OS).
At this point, Apple and Mac OS is actually -arguably- more ready than Microsoft (with the experience from the iOS etc). However, Apple is not in need for a move into this new markets yet for many reasons.
For example; if they do, they have to compromise on characteristics of Apple like usability ; especially when every single program/app has to work flawlessly for the project to be successful. Microsoft is more relaxed on that matter since there is maybe hundreds of different device options in the market running Windows. Consumer does not get affected by the physical means of using the OS. However, Apple comes as a package, which has more effect on the customer experience.
Apple will eventually get into market. But when the OS is ready. And that the device components are far cheaper. This way they both create time and cut costs.
In the meanwhile, Macbook is just Surface minus touch. Thus, keyboard is still there (for touch pad and a cheaper storage for the components rather than fit back into a screen --also they are already working on that with iPad).
I would say Apple won't/shouldn't resolve the OS and tablet implementation issues as soon as the next couple of OS releases. It would basically require much more resources than current state (keeping in mind --the state of iOS drifting away from the earlier less buggier versions). Instead, they are evolving the current state as a whole with employees, processes, products etc.
Now, how about a new Macbook; with detachable keyboard (maybe magnetic? -unlike Asus Transformer type).
When detached, this device could start running iOS. Implement continuity features too. (correct me if I'm wrong -Apple is the first mover in this as well).
Also; can you see the point of USB C? They are establishing a port that could easily be implemented on iPad.
There you go; same productivity -limited but much more flawless operation. And a market that Apple created.
Cheers!
PS. I agree with you on most of your post; that's why I wanted to interpret the situation from a more managerial side.
PS2. I believe the same story goes for Apple Watch too.