while advertising will fix the players issue, shouldn't we also think about how many players will join and if the server will handle it? a youtube ad can bring out at least 3000 extra players which is based on experience the most of the handling power of the server.
Now a smaller advertisement might not push the official administrators to improve the server handling which brings us all to a difficult situation to fix.
All in all the low amount of players should bring a faster experience for players, but to be able to get more players with the same experience needs an important investment choice from the makers for future proofing the game's lifespan.