Very easy to defend, since there are infinite possibilities of what a Coinbase transaction in your bank statement could mean. "I wanted to try out crypto so I bought a takeout pizza" he might say. Not the case with CC-Bill or AcmeMiddlemanHoldings.
And regardless of how the interaction plays out between the wife and husband, the end result will never be a chargeback, so the content provider wins anyway.
Right, she'll think you're buying drugs instead when she sees the charge for cryptocurrency.