The game evolved this way, nexon actually sometimes mentions how they would want players to hunt in parties etc, paraphrasing of course, but the player base leans towards solo play, the game evolves to the play style of the players.
lol what nonsense, they removed the high level party play areas and nerfed PQS ....... thus making solo leveling most efficient so why wouldn't people solo?+ Majority of people quit during the time they removed the party play at LKC/Stronghold so even if they revamp pqs /bring back those PQS no one will be around to do them unless they merge most of the servers together.
The game changed and players changed along with it not the other way around. Sure they added those low level party play training areas but most of those levels are done in like a day or two with people who know what they are doing and have enough exp boosts. Again like I said servers are a ghost town so not like someone could make use of those maps even if they wanted to unless they have a friend to play with. Majority of players have surpassed these maps.
Oh and pqs like Kenta ect are bugged so yeah..... Alien PQ could give better exp/be less annoying maybe people would do that PQ more. Crossworld PQ should be expanded on imo