Fake players on recent FM's isn't really that different, players often simply are just given a different name, there will be still be the exact same player profiles at clubs, so Man Utd will still have a Mexican, a Dutchman and and a English striker as their top three strikers, just different names. I remember on older FM's it would completely change everything, I did one with Utd years ago and my best player was a 17YO striker from Panama, it was actually random.