By the same token, you could make it impossible to use your phone while it's charging, but that's rightly understood to be a terrible idea that's not even considered. Rechargeable game controllers pretty much all allow you to plug them in if you want while you use them, and in some cases to just drop the battery entirely and use them as wired. I recognize that neither of these are perfect analogs, mostly because both of these need to be charged much more often.
I can't really decide if the Magic Mouse thing was primarily an aesthetic decision to have no visible ports, or a decision that the user couldn't be trusted to use it "correctly" if it allowed itself to be plugged in normally, or an equal mixture of both. Either reinforces some typical Apple stereotypes which is why it keeps getting brought up even though it needs to be charged relatively rarely.
No one would assume that a mobile phone requires to be plugged in to work. With mice it is not as clear cut. And looking at my magic mouse, I wouldn't know where they would put a charge port without making its wireless use worse. So I prefer it as it is. Would be nice though, if wireless charging would be possible.
I can't really decide if the Magic Mouse thing was primarily an aesthetic decision to have no visible ports, or a decision that the user couldn't be trusted to use it "correctly" if it allowed itself to be plugged in normally, or an equal mixture of both. Either reinforces some typical Apple stereotypes which is why it keeps getting brought up even though it needs to be charged relatively rarely.