To be honest I don't have anything against Bethesda too, though who knows what would have happened if Obsidian had more time to work on the game (but again, maybe the fact that they didn't have much time and that they tried to keep the game safe it's for the best, both from the reception pov, and from the management pov, so they don't screw it up by being too ambitious). Then, again, Bethesda probably has given them the project in the first place because they don't want to keep too much time between installments of the series.