Ford Escape - replace degas bottle to thermostat housing hose assembly?

My wife’s 2104 Escape went to the dealer for two recalls. They called to say that the car should get $600 replacement of its degas bottle to hose thermostat housing hose assembly. It has a 2.0 twin turbo engine. I DuckDuckGo-ed this and came up with nothing but a bunch of generic different cooling system stuff, but nothing specific to this. Does anyone know if this is BS? Nothing is leaking and the coolant level is normal. I’ve had problems with this dealer service department before. They told my wife she needed to buy 4 new tires anytime she had to replace just one, because it had AWD. The manager told her that the car would “burn up” if she didn’t do that. I called BS on that and took it up with the regional Ford folks. They confirmed my suspicion and noted that the dealer was lying to us. I lodged a formal complaint.