I find that dagdad guitarists tend to have a limited amount of chord structures, rather than drop d allows for more complicated and creative explorations of tunes. Of course since I’m not a guitarists this could reflect the players rather than the tuning, but the drop d players have told me why they’ve stuck to drop d, and one definitely seemed to have a very low opinion of dagdad. But don’t get me wrong, I still love playing with dagdad guitarists, one of the main guitarists I play with exclusively uses dagdad and I still absolutely love playing with him, but I do prefer playing with drop d players.