Well, that's a key feature for many customers; and I'd bet that most people for most purchases would not want to gain privacy at the cost of losing the ability to charge back wrongful payments.
For most yes but there is a big use case outside of most. Digital goods/software especially is rampant with friendly fraud, virtual cards with fake balances for trial abuse, etc. Example: https://news.ycombinator.com/item?id=27659172
> and I'd bet that most people for most purchases would not want to gain privacy at the cost of losing the ability to charge back wrongful payments.
I'll bet that many customers would appreciate if they could decide if they want one or the other, instead of the shop owner just deciding against their privacy.