Emacs does not need to bundle Magit (or most other packages for that matter). What it needs is better package manager - built in!
As of recently, I'm an Emacs user (long time Vim user, just wanted some change) and I still have not completely comprehended how MELPA works. If anything should be more closely built in (and documented and standardised) to Emacs, package manager should. Everything else is better placed into outside packages.
If we look at Python world, here and there we can find discussions to include some library into stdlib and there are good reasons not to do it. Yes, batteries included is cool at first but it's no wonder that pythonistas say that "stdlib is place where packages go to die". We can think the same of Emacs and its package system.
As of recently, I'm an Emacs user (long time Vim user, just wanted some change) and I still have not completely comprehended how MELPA works. If anything should be more closely built in (and documented and standardised) to Emacs, package manager should. Everything else is better placed into outside packages.
If we look at Python world, here and there we can find discussions to include some library into stdlib and there are good reasons not to do it. Yes, batteries included is cool at first but it's no wonder that pythonistas say that "stdlib is place where packages go to die". We can think the same of Emacs and its package system.