I saw harsh dev post about this on X:

It's a pretty typical escrow setup with the advantage (or disadvantage, depending on your requirements) that you don't need to do it on chain. Essentially, the mint becomes the custodian, but the parties can select their own arbiter in the event of a disputed outcome.

In the event that there is a dispute, the arbiter can step in and review the story from both sides and settle the contract:

There's a video if you want to see it explained that way:

And here's a flowchart showing how all the pieces work together:

I suppose one advantage this method has is that it works for smaller amounts. I know that there have been a number of attempts at onchain escrow, but these aren't the sorts of things you'd use for selling goods on ebay or stuff like that. This might scratch that itch, but I wonder if the use of escrow is foreign to most people and it is just an uphill battle to get it to catch on.