Apple's magic mouse
The charging port is located on the bottom so you can't use it while charging. Some argue it's for aesthetics. Using it while charging would lead to folks leaving the mouse plugged in all the time, which looks dated. The real reason could be that the battery location was traded for the charging port. A total redesign wasn't conducted because the mouse charges so rapidly.
It distracts from the larger issue. The low profile aesthetic looks good but it's uncomfortable to use for long periods of time. It fits no one's hand perfectly. It's normal for designers and critics to complain about every product. What's a bad sign, though, is when designers feel the need to design accessories for the accessories in an attempt to make them usable.