To accept "growth Metallica" you mean... The fact that more people have come to acknowledge that they have always been a great band is just a matter of definition (mainstream).
James seems to put a little bit more into since elton john said it's one of the most beautifully written songs ever. He said he wasn't only afraid of fan reception, but was even nervous to play it for Lars, Kirk and Jason. It's grown on you old old-heads from hearing it live for the last 30 some years. You can't help but associate it with those concerts now. I'm only an old-head, so I was young teen when the black album came out. To my gen, that album is iconic. We get it, though, because we've been hyper critical of everything that came next and some of it grew on us later on too. Except st anger 😂