There are a lot of gray areas and contradictions in the 6th Ed Champions canon, many of which were Cryptic's "fault" when it bought the IP and started cobbling together pieces from past editions without strict quality control (try making sense out of post-Battle of Detroit Doctor Destroyer, Shadow Destroyer, and Gigaton's personal timelines). Still, that's totally in keeping with the continuity problems in both Marvel and DC's respective continuities, so its not all bad.
I love fitting together pieces of pre-existing continuities, and Champions Universe has some great stuff to work with.