Again, his fall guy approved it, the banks typically don't look any further unless a serious red flag pops up.
There's just too many transactions happening on a daily basis for them to do a deep dive into each of them. They may have made an inquiry on the 1st transaction, but after getting a satisfactory answer from the fall guy they just consider it normal business. And while the money may seem huge to you or I, in the big picture of banking transactions they barely register a blip.