I'm not disputing it's possible that bot teams might be simulated differently from attended teams (personally I haven't experienced anything overwhelming to suggest this is the case, but I wouldn't be overly surprised if it's true). What I was disputing is that Mourinho games are simulated the same as other bot games.
Mourinho games are at a whole next level! I'm actually doing a bit of testing on the game at present and using friendlies against Mourinho as the base (since it's always the same team/formation). In around five games so far I'm yet to score a single goal despite having around 66% possession in each game. Of course, on the other hand, Mourinho regularly enjoys a stellar shot efficiency!
I get your point that if they're "rigging" it with Mourinho, who says they're not with other bot games... but I wouldn't be using Mourinho games as examples to push your case. I would focus on analysing shot efficiency in regular bot games vs attended games if you want to go down that path (you should be able to get a decent sample size by analysing just your own games at the end of the season to see if there's a correlation).