Yeah, we have no basis as to whether or not Moro is familiar with the true capabilities of any Gods outside of the Kaioshin, so the statement really can't be taken into account. If this was one in general, you may as well try and say he's above Zen-Oh or the same with Goku based on Merus saying UI wouldn't lose to anyone, not to mention we have no idea how powerful Beerus was 10 million years ago compared to now.