Going by these NPD figures, 100K copies in the first month for Darksiders is a very respectable performance. I hope they actually are a small company and haven't paid a lot in licensing fees for the engine and they might even make money with it.
On the other hand, seeing DI, Bayonetta and Army of Two perform this bad is telling. EA has now frozen all recruitments even in Montreal which was the last studio that was still hiring apparently, and are in the process of firing the Army of Two team. Along with the 1K plus that are going to be let go after the end of fiscal year.