I used to be able to stay in G4 and farm medals quite easily (with some selective opponent choice)
Now I'm just about hanging on it G3 and pretty much have to manual all fights (choose opponents very carefully)
The design of the Great Hall and Arena tournaments would seem to indicate that they expect people to (easily) win (farm) a lot of Arena fights
However I still cannot do this whereas I used to be able to
So this still feels broken to me
Although I'm not sure what sort of experience Plarium want/expect me to have with the Arena
it's counterproductive to attack a team lower than you due to the points lost - generally they aren't weaker teams - which is where this falls down
It's not a good advert for a competitive arena where I can attack a team ahead of me three times, lose two, win one and come out ahead on points