Information and Experience Asymmetry
This happens regularly for large and complex procurements:
Veteran seller who has been playing the game for years and sold complex solutions in the red corner vs. the newly promoted customer representative on their first complex technology procurement in the blue corner.
Hardly a fair fight.
And that is how you get situations like this one.
(Disclaimer - I don't know the details of this case and they may well be different from the above scenario)