I'm not shocked at all, because people are still generally confused about what cryptocurrencies are and what the differences are between fiat and crypto - and between the classic banks and services in question. If by any chance the OP had taken $100 000 to its bank and deposited it in the account, the bank would certainly have responded through its internal mechanisms and asked the owner to prove where his money came from.
The OP simply chose from all the bad option one that will cost him a lot of time and nerves, but that is the price he has to pay if he just sends $100k to a complete stranger with a catastrophically bad reputation.