True but that was the nature of the Captain Universe powers, there's no set host it travels to person to person as the needs arise. In this case Spidey was up against something he couldn't handle by himself, I believe it was a Tri-Sentinal somebody please correct me if I'm wrong, and the powers fused with him. Spidey went back to normal as soon as the threat was over.
In this case, despite having four monthly titles, Superman wasn't exactly bringing in any new readers. One of the biggest complaints I remember reading at the time was from the writers was that despite being powered down after Crisis there was hardly anyone in his rogues gallery that Superman could believably throw down with. And a big one from the readers were the stories were just plain dull. So instead of trying to craft better stories or creating villains that could match up with him they decided to go with a stunt to pull in new readers, much like the death of Superman. It might have worked initially but I think they were surprised by the eventual backlash at throwing out what superman was to the general public and not just the hardcaore readers.
Personally I wasn't a fan of this particular idea, mainly because it felt like a cheep stunt. If they wanted to update his look there might have been an initial outcry from the old school diehards but it probably would have been fine by most people in general. But slap on on a new power set with to particular rhyme or reason, people wisely called BS on it.
