The whole ENY thing with fewer than 50 people online always confused me. I've seen it a couple times where the numbers looked something like Knights - 10, Bish - 7, Rook - 8 IN FLIGHT yet the Knights would have an ENY of 15 or something because the numbers logged in were Knights - 21, Bish - 11, Rooks - 10. This, I think, comes down to the people who, for whatever reason, don't log off after they're done playing. Be it because they went AFK and forgot, want the 25 free perks if their team wins the war, or are just letting the game download skins. This is a whole other topic that can be discuss though.
Coppr, the thing is everyone is different. Some people are like you and are adaptive. They like many different aspects of this game. Not everyone is like this though. Some people just enjoy a certain part of the game. Some just like the aerial combat part, some just like gving, some just like to bomb targets, some like ground attack operations, or they could like a select combination of any of these aspects. You can tell someone to just GV if there's no air combat going on but if they're not a GV type person then they're just not going to have fun. It's simply not for them.
From what I remember the gv combat is still fairly active, as is bombing and ground attack stuff as bases and ground target are always there 24/7. The area that I have noticed a massive drop in over the years is Aerial Combat. Unlike bombing which only needs static ground objects for you to be successful and have fun, aerial combat requires another human player on the other end to fight against, and those kinds of people are rapidly disappearing from the game. GVing, just like aerial combat, requires another human player to fight against to be really fun as well but we don't hear much complaining from them because there are still plenty of gv folks still playing. You don't have to go searching all over the entire map in hopes of maybe finding a gv fight, but a good furball/dogfight you do.