I can only comment at the time of Leahy, when he was AIB super salesman in 2012. Result, PAL ordered another batch of 5 A330s. The B789 was nowhere, and when they are about to do it in 2016, PAL ordered the A359. The B789 still nowhere. they got 77w though. During the last 10 years Airbus has been there sweetening the deal for PAL. Boeing never got the chance.
In 2023, PAL ordered the A35K, Would the B789 still be nowhere?
Making Sense