Sim City simply is not working.
Well, to the extent that that's true, the bombing may be legitimate.
The problem is that many games run into bumps early on and are subsequently improved such that they become quality products, whereas the initial negative reviews are permanent. Given that dev cycles are tight and games often
must be "completed" by a deadline the publisher imposes, it isn't necessarily fair to punish developers for having to adhere to an overstrict schedule -- especially not if they develop a quality product over the course of a more reasonable timeline subsequent to release.