Originally Posted by MrsKent26
If they're using the same Superman, they're in the MOS universe. Suddenly adding "all these crazy things" seems like a bit of a retcon to me. I can't picture a magical island existing in MOS at all. And a pegasus flying threw metropolis? I just can't see it.
How is it a retcon? We haven't seen that much of the universe yet so no rules can be set. For example, if we haven't seen Themyscira how can we declare what exists there and what doesn't? And just because Superman is in it does not make this the MOS universe. Batman is in this, Diana is in this, etc. It is their universe just as much, meaning it is a United DC Universe like the comics. The MCU is not the Iron Man universe just because it started with him.