Or, EA can't have all the computer setups out there; all the OS's, all the computer brands, all the hardware or the human factor/bad luck of millions of players. They do test the games before launch as much as economically viable and then they patch out the most prominent bugs and glitches.
Although I'm not saying that everything is completely and utterly perfect, I've seen far worsely treated games to be honest.
Rules-wise, this thread can be a bit speculative, but if it goes down to a pure "EA-bashing thread", we lock it.