Board Thread:General Discussion/@comment-4440927-20200108185553/@comment-4908075-20200111101816

IMO, Ben should have lost access to Ultimates in The Ultimate Sacrifice itself. But regardless, Ben having Ultimates only in one series (which focussed on said Ultimates, as evident by the name) was a better idea than to keep them for later series as well. It helps maintain the novelty of the idea; keeps us from getting bored of it. OV brought back the feel of OS with all sorts of different new aliens (including some useless or stupid ones) instead of just more powerful (and in most cases, just differently coloured) versions of the same aliens, and gave unique elements to villains like Albedo (Albedo had Ultimates but Ben didn't). It added to the story. The reboot, on the other hand, brings up more powerful versions of Ben's aliens every season (Omni-Enhanced, Kevin's, Omni-Kix) as a tradition. Ultimately it's the same roster, same powers, similar design, instead of adding novel ideas and diversity. Part of the fun of OS was the 20 different aliens, not sticking to 10 and giving cosmetic changes.