He is for numerous reasons.
Bethesda mis-managing resources on useless shit like being able to pick up every fork, move it, and the game remembering where it is, is NOT an excuse. Out of 20 million who bought skyrim how many people really care or even know about it?
Bethesda's AI is not more advanced every other game. Do you realise how complex a game like GTA's AI is with all the traffic routes, massive amount of traffivce, pedestrains, physics, etc.. Building a modern city as detailed and realistic as GTA is not to be shunned at.
Many other open world rpg's have AI with daiy routines, jobs, run inside when it rains, eat, go to sleep, travel....
Unless you have detailed knowledge of how complex each engine is, it is hogwash. Many of these games are really complex, Bethesda is not some special flower these days.
Most of the things he lists other games do, and things like being able to move every loaf of bread is resource mismanagement that should be used towards , making better animations, gameplay, pathfnding, performance etc... Things that have a far better impact.