Earlier quoted context omitted.
There are ways it could be built into the contract. But most don't support that operation today.
On whose authority and why? In this case the customer was promised a product they didn't get. And with traditional banking usually it's the other way around, businesses have to live with chargebacks for products they sell to people with stolen card info. Always someone getting burned, but in this case it's the "idiots" for lack of better word. Don't try to make cryptocurrencies work like fiat, that's exactly the kind…
You didn't even explore any of the options for different types of "undo" operations that could be possible in contracts. You seemed to simply assume recreating the exact same situation that exists in traditional finance and responded based on that.
There are several other ways of doing it that I can think of, all with their own pros and cons. There are even a couple that have already been applied in crypto that I can think of and I'm sure many that I'm not aware of.
And why would you assume I even meant "reimplement traditional chargebacks as they are today"? My recommendation: Hold off on forming strong opinions too early in the process of learning about something.