Maybe the early access beta was limiting the available resources, or they used bad settings, bud juding by that thread it looks like the model got worse during training or the earlier examples were quite cherry-picked.
If you want the best results there is still skill and work involved. Consequently a showcase by people experienced with the model far surpasses what you get when you shout prompts over the internet for somebody else to try
Agreed that some of the others aren't so bad, however the bar for a convincing swamp creature is a lot lower than for a convincing human being.
If breasts come out looking like that, I'd be taking a hard look at my training data.
I am sure someone will tell me there is a reason why I am wrong and these aren't that bad.
Midjourney has never needed an explanation though with words. The proof is in the output. Everything else is nonsense.