^Yes, but sales success does not necessarily equate to good writing. Just ask Stephenie Meyer or Dan Brown.
Granted, I haven't read Superman: Earth One so I don't know how good it is (though I've read enough to know that JMS doesn't even seem to know what the term "passive voice" means, which isn't encouraging). But I do know that citing sales figures doesn't count as evidence of quality.
Granted, I haven't read Superman: Earth One so I don't know how good it is (though I've read enough to know that JMS doesn't even seem to know what the term "passive voice" means, which isn't encouraging). But I do know that citing sales figures doesn't count as evidence of quality.