I don't really see what is the difference between an end game players and the others: you have to farm Undead and the best is Explore mode (if you are very lucky x4 Undead each time, it's 250 battles!).
If you want to farm Explore mode that means you won't "produce" trophies for your guild. I don't see with the Guild Wars coming why devs will want to push players out of PVP. Less competiton in PVP? Is it really what devs want?
Some of you guess that it's intended and devs want to give more rewards for doing Explore mode (which is already the best way to farm Arcane...) but it's only your guess. Mine is that devs didn't oversee that: it's like the Arcane that you drop in Invade which is dependant of the Home Kingdom of the defenser. Do you think that devs oversee that 90% of the players will stay stuck with Whitehelm and that now some (a lot?) of us have an huge amount of yellow traitstones compared to the other colors? Or do you think it is also intended?