I just realized Smart Falcon has no friends in her career. Like it was 98% just her and you. Her roomate Eishin Flash only appeared once (and without dialogue) because they never met irl (like Spe and Suzuka). The only other Uma that appeared is Rudolf, and that was only because irl Rudolf's death was during Smart Falcon's peak.

Cygames took notes of this, and the next dirt umas are announced in one batch (Copano Rickey, Hokko Tarumae and Wonder Acute) to not repeat friendless campaign like Falco's.