I agree that it's a very ridiculous placement, but do you have a better idea where it should be placed? IMO, this is the best option given the constraints.
The usual ridicule is that you can't use it when it's charging. To me, it's a non-issue at all:
- When the battery drops to a low level (4% I think?), you will see a notification on your device reminding you that the charge is low. So have never been caught in a situation where I needed to charge the mouse while using it. - The battery lasts a long time. Apple claims that it lasts 2 months per full charge. Based on anecdotal evidence from myself and a friend, it lasts 3 months per full charge. So this 2 months claim isn't based on some super unrealistic assumption that Apple makes. So why is this important? Because at 4% when you receive the warning notification, the mouse can still run for another 2 days! (Assuming constant usage everyday and one full charge lasts 60 days, then 4% = 60 / 100 * 4 = 2.4.) - Finally, it charges super fast, too. A couple of minutes of charges can run a full day. So if you come to the office to find your mouse out of charge (because you forgot to charge it for the past 2 days despite the notifications), then plug it in before you get your coffee and you're good to go.
My point is that, yes, the charging port placement is ridiculous, but 1) I don't think there are better options and 2) it's really not that big of a deal because it is extremely unlikely that you'd need to charge while you're using it.