I wouldn't take that piece of journalism entirely at face value on that specific detail.

However, I wouldn't be surprised to see the first delivery postponed, as it was well in advance of the main body of deliveries, maybe more so than needed to get the proving flights done.

Also, with this crisis, Airbus may not have the manufacturing facility in mobile ready.
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So I wouldn't be surprised if the early delivery is delayed, but not sure the plan is to delay the entire program much. Completely my opinion only.