killpanda
wants to fondle your manboobs
It doesn't actually really remove it, it just hides it. It appears in the App Store as a standalone product because they figured that's where people would be the more likely to find it if they want to show it again.
That also doesn't mean that they allow you to choose another client as the default mail client, if you try to click on an email address, the system will ask you if you want to open Mail.app instead of whatever client you use.
That also doesn't mean that they allow you to choose another client as the default mail client, if you try to click on an email address, the system will ask you if you want to open Mail.app instead of whatever client you use.