Ahh. Right. So what they actually mean is that the game is hard coded to let you get to a certain point and then stuffs you regardless of what you do?
It's amazing how many psychological things like that go on in games: People seeing something that just isn't there. I totally agree with you that given no other reason people assume that they are being "cheated". When there's no other law to explain it, we usually turn to Murphy's.
Having said that, I will confess; Angry at so many people moaning that they were getting unrealistic scores all the time and that this was something to do with how the AI was badly programmed, I once designed a system whereby the difficulty would change based on the batsman's average. So for, say, Ricky Ponting the difficulty would be very easy until he reached 30 or so, be medium by the 40s and hard by the 80s. By the time you passed the player's top score ever, it was at maximum difficulty. Same would apply to a tail ender, but in a much quicker period.
My theory was that, as long as the player didn't realise it was happening, because players would score a realistic score more often then the player would not feel cheated. I'd be intrigued to know whether people would consider this "wrong" or "right" (and I suspect I know, hence why it was never used!)