I’ve never liked MMOs for being grindy anyway, just not my type of game, I’d rather grind my skills in games where skill is what matters entirely, or mostly, over grinding levels and gear.
I stopped playing WoW Classic when it was merely WoW because I played too much guitar and other games to keep pace with my buddies, so I couldn’t raid with them.
A lot of our current SC scene went to give Classic a go and if it were an option (I’m not sure if it is or not) I’d probably have fun boosting up to their level to play with them, but I’d probably not grind it out.
So in this sense I think it’s an alright catchup mechanic to bring friends together, but as mentioned up the page for any new title the content to get to max should be engaging to not require such measures.
It’s a delicate balance and I’m not sure what the right one is, but again it’s not really my genre.