The Day Before did not sell a single million units and Palworld is not getting widely refunded, even though everyone who starts it, dressed like a caveman, immediately realizes they aren't getting to play with guns anytime soon. There were streamers showing this even before the game was out.
It's true that virality is unpredictable and popularity is not a measure of quality, but I think a lot of people are being overly dismissive of the fact that Palworld managed to hook people with something that appealed to them. Not to say it's a bastion of quality and originality, obviously not, but it has something going for it.