Bethesda may not have been doing too hot financially but they still had their mega selling IPs(Elder Scrolls, Fallout, Doom). Obsidian and the Wasteland devs were probably to further corner the market on WRPGS. IO is borrowing the ip of their most well known games from someone else and their games don't do too hot financially. And Sony isn't exactly willing to excuse underperforming games back to back quality/talent be damned.
Obsidian,Inexile,Ninja Theory, Double Fine were doing pretty poorly financially and had back to back underperforming games too. Maybe small profits at best. Hell that was one of the reasons they sold to MS. For financial security.