Ok, I'm convinced for now ;-)  I managed to reimplement retina handling in tessera against this patch (very easily, I might add, and it returns me to released dependencies), so I don't have a concrete use-case at the moment either (I'd thought that that might have been one).  If one does come up in the future, I'll work-around it then and we can revisit this (but let's not hold our breath!).