Dakar except the race it is also an established Trademark that brings profits (and a lot). ASO wouldn't risk it to change the name and lose such a recognizable label. It's all about money after all ;)
Dakar Team F5 proud member
Not all those who wander are lost..
KTM 990 Adv: "The Black Machine"
KTM 690 Enduro: "Agent Orange"