Yeah it's not the worst but it still removed functionality from a product for arbitrary reasons. Jony Ive just didn't seem to understand/care how people actually use a mouse with both the magic mouse and the hockey puck mouse.
10%? Wow, you're lucky - mine consistently only lets me know when it's down to 1%, and only once I need to use it, like now.
For all its $billions spent on their other stuff, you'd think they could hire someone to figure out a better mechanism to let the user know when they should charge their device. As someone once (sarcastically) posted on the MacInTouch (RIP) forums (I'll paraphrase):
"It so unfortunate that Apple can't come up with anything that would analyze the user's use of the device, and predict when it should be charged based on that usage... some learning computer of some kind...."
It’s fine.
Apple has made many real mistakes, let’s focus on those.