Yes, it's been in the game since at least PES5. Seabass admitted as much around that time, saying certain teams would get a more of the momentum boost, than what would usually happen, when played against specific teams. Like Norway vs Brazil for instance was a known one.
If you can't defend, then you'd still lose, but some of the defensive errors or rebounds you'd see from Brazil did make it ridiculous. Quite frankly, it has and will continue, to ruin the game. I remember the days when it was pure skill. Or at least the momentum script wasn't as blatant/more rare. If you read the attacker, you'd win the ball. Now we have lucky bounce after lucky bounce and it just feels so pointless to play.
It seems as if the script has spread out to team strength now, which sucks even more. I wonder if it has to be done in order to make the CPU challenging. Let's not forget, the CPU on the older games was easy to beat after the first week of release. Get rid of the uncontrollable boosts and just let players play. It really destroys multiplayer.