Successful and good are completely different and unrelated metrics. Fifty Shades of Grey was extremely successful, but no one in their right mind would ever call it good. Psychonauts was met with universal acclaim, and is widely considered to be one of the best games of all time, and yet it was a complete flop and needed more than a decade to get a sequel.
Bethesda games are extremely successful. They are not good games, and their success is not a good thing. Bethesda kicked off microtransactions in 2007 with Horse Armour. This decision completely fucked the wider industry. Not a fan.