IMO it makes a lot of sense for them to not let anyone else make a game with their cash cow IPs, regardless of if the game would be better.
For them as a company its not such a big factor if the game is actually considered good, as long as it sells like hot cakes and I dont think that has been an issue for Bethesda Fallout/Elder Scrolls games.
If they let other companies make games that increases the likelyhood of franchise fatigue, reduces their profits vs creating a game themselves and inevitable comparions between the main games and the other games will start, possibly holding them to higher standards than necessary to keep on making the big bucks with their IPs or lowering the perceived quality of these games even further.
Also there is this whole organisational issue where you have to support the other company properly in creating those games.
So yea it would be nice for fans of those IPs, but I dont see a good reason for them to invest in those games.
For them as a company its not such a big factor if the game is actually considered good, as long as it sells like hot cakes and I dont think that has been an issue for Bethesda Fallout/Elder Scrolls games.
If they let other companies make games that increases the likelyhood of franchise fatigue, reduces their profits vs creating a game themselves and inevitable comparions between the main games and the other games will start, possibly holding them to higher standards than necessary to keep on making the big bucks with their IPs or lowering the perceived quality of these games even further.
Also there is this whole organisational issue where you have to support the other company properly in creating those games.
So yea it would be nice for fans of those IPs, but I dont see a good reason for them to invest in those games.