Yes came back in the 80's mostly due to the efforts of Trevor Rabin, who understood how to make music that was relevant and even innovative. No one else in Yes has ever shown any ability to make music that was popular/relevant past the 70's, and as most people know, Yes had broken up and that band wasn't even going to be called Yes.
Still, they did have some cool videos in the 80's, and it was cool seeing Yes being popular again, even if it wasn't the Yes I grew up with. Even hardcore Yesfans admit that if RabinYes hadn't existed, the Yes name might have been gone forever.