"This decision was made by Sony and so please make an inquiry to Sony," Konami bluntly told GameSpot. When Sony announced the swap, the European brand manager for PES told the same publication that Konami was caught by surprise. "I cannot really tell you what happened because I just found out today, in the morning when I opened my laptop. I can't really explain," Lennart Bobzien said.
Sony didn't offer any deeper explanation on the call in its own statement. "We have decided to make a change to the PS Plus games lineup this month, and will be offering Detroit: Become Human Digital Deluxe Edition instead of PES 2019," it said. "This was a decision we decided to make as a company, and we apologize for any inconvenience."
It's possible some kind of late contractual issue might have led to the switch, as Eurogamer suggests, though Sony might simply have been trying to placate fans who weren't pleased about the inclusion of PES. In any case, Sony seems to have annoyed Konami as well as players who were looking forward to picking up the soccer sim as part of their PS Plus plans. Others had also bought Detroit: Become Human at a discount in last month's Days of Play sale, so Sony might have ticked off those gamers with the swap too.