I agree with some of this, but will note that actually using a Magic Mouse 2 cured me of joking about the design (I was entirely on the "LOL how dumb" train before that). It wasn't an issue, in practice, and did keep me from just using it plugged in all the time (which is what I tend to do with other wireless things at my desk that have integrated rechargeable batteries).
I think the main issue with the magic mouse 2 is that over time, as the batteries wear out, the effective life of the mouse risks dropping so much that you may eventually be unable to use it for a full work-day, whereas the previous solution of AA batteries had 'infinite' longevity - while it wouldn't be too much of an issue when new, it harms the resale value
That makes sense as a legit problem. Reminds me of people going "LOL WTF do you need 12 hours of battery life for?" about the new M1 laptops. Well, for one, more battery life is always nice, and for another, it'll be really nice to still have 8 hours of battery life when the laptop's seen five heavy years of use without a battery replacement. I could see a few-years-old Magic Mouse 2 getting to be kinda shitty, sure.