That is the exact bit that Irish Nationalist journalists have went to town on since Theresa and Arlene got loved up.
The DUP will always look to the mothership of Westminster. It just isn’t in their psyche that London will simply use them as and when they need them. They just are not as British as Finchley.
Brexiteers only concern re the backstop is that it locks them into a customs union. They couldn’t give a fig for the Ballymena Loyals who look to London rather than Dublin.
The DUP are useful idiots for the ERG.