This being said, for the billionth time, take into account when you insert a game cart into the console and it does not make a proper connection, the console reads garbage incomplete data. In the account of a real game cart this can result in a blank cart icon to appear in the DSi screen, or no icon at all, and when attempted to run, it throws an error.
If they were to really log everything at this level, and a cart were to be improperly read, such that the header data seemed to be garbage, the console would likely mark that as unauthorized, unlicensed hardware, and then, with whatever method of bricking they use, kill the console. And in that case would be killing a legitimate console because of a simple software media error?
I think not. They couldn't risk the backlash that something like that would cause.