Hold your horses there. You have nothing to go on but the pure fact that Cerberus gets indoctrinated, and you are already calling it lazy writing? Sure, it may not be the best resolution to the Cerberus arc on the surface, but wouldn't it be wiser to wait until you actually have played the relevant parts of ME3 before criticizing it as lazy?
For that matter, the great trouble with them has always been that nobody really knows from whence the Illusive Man is getting his money or where he himself comes from. This is brought up multiple times in the game and subtly hinted at in other ways (the SR-2 from nowhere). One of the few things we DO know about TIM is actually quite worrisome: he is synthetically enhanced. The only other synthetically enhanced characters we encounter in the series are Shepard after Lazarus, Saren after Virmire, and...Husks.
Lazarus was cutting-edge technology, we see or hear of nothing else like it. The other two are explicitly Reaper-tech. TIM has had his synthetic eyeballs as long as Miranda has known him, perhaps as long as 20 years, at the least 10, long before Lazarus.
This doesn't sound good, y'know?
