The question which can determine WoW Classic's longevity is whether we've got time for it to be that way. All the conveniences of the modern game are designed, in part, to encourage the needs of players who wish to feel like they're still milling resistance equipment and raiding Molten Core for seven hours at a time, but actually have three hours maximum between placing their kids to bed and going to sleep before another workday. Modern World of Warcraft design evolved that way for a reason, to how so many players will need to perform to stay involved with the community at 34, and it was in reaction.
In today's WoW, if they don't need to nobody has to socialize with, another player, or aid. It is designed so that the greatest group of gamers can play the least issues possible. What was once a hardcore endeavor is welcoming to anyone who wants to play which is a good thing for gamers who are hurting for real time or real friends on line -- and also for Blizzard's bottom line.
This is not a big decision that Blizzard created at some point; it was a natural development of the game that was based on player feedback and behaviour. If players do not like what modern WoW is now, they also have to acknowledge that they are likely part of the reason it turned out this way. Being able to play solo is, and has been also a huge part of the shift. classic wow gold sellers https://www.mywowgold.com/Wow-classic-Gold.html