Par4QC No one is going to make 2 drivers, not financially practical.
Sneakylong Exactly, it’s too expensive to retool and produce two drivers. So the less forgiving driver will be the only one offered.
Have you looked at the current offerings from the large manufacturers recently?
Callaway have 13 different driver options currently available (on their GB site), although this does include some of last year's models (the Rogue ST line). Titleist have 4 current models, Taylormade 7, and Ping have 9 (although that includes the 425 series as well as the 430).
There are several good arguments that can be made against having different equipment standards for high-level competition, but 'it's too expensive for the manufacturers to make several different types of club' is not one of them.