To be fair: They are probably not working with a lot of margin and shipping it bavk to china is costly for them.
If I buy on AliExpress I am under the impression of it either fits or needs to be trashed. But returning is very unlikely.
And 8bitdo is (when not being sold by a 3rd party like for example microcenter) just another chinese seller/manufacturer on AliExpress or Amazon^(which is just a chinese shipping proxy with some local sellers nowadays)