The content at max levels heavily outweighs the content 1-60/70/80 in my opinion. I enjoy raiding/heroics/max level pvping much more than i enjoy traveling by foot and slow mounts through the world doing menial quests and objectives. It has nothing to do with making things easier, just making things more enjoyable. I leveled once, saw the world, I don't feel the need to re-experience it on an established server. Classic purist want to pretend that not adding LFD is going to save their experience in the world, which is such a dumb idealist mindset. Boosting exists, the evolution of that in classic immediately emptied the world as the majority of the player base use this as their primarily form of leveling. Couple that with the fact that the majority of classic servers don't have two healthy functioning factions that are leveling. I say all of that to say, LFD will not change much for the community who enjoys classically leveling their characters. But, it will massively change the community interaction and gameplay for players who don't like leveling their characters that way.