Possibly. One of the biggest factors Stephens has always had going for him was confidence. He had Aldo in trouble early, and then just when things look good for him, vintage WEC Aldo appeared and finished him off, one of the only times he's ever been finished by strikes, too.
Stephens has always struck me for a bit of a head-case. It blows my mind how someone with his level of physicality and experience, along with training at a world-renowned camp like Alliance, just never seemed to be able to put it together enough to be a contender. Lightweight and featherweight are both insanely tough divisions, but Stephens should've been able to at least make it to a title-shot. He's kind of like Michael Johnson in a weird way.