Honestly, it's pretty absurd that our advice to most newer players, regarding arena, is "hold your nose and hit refresh over and over until you limp into G5, then coast on 1-man defense teams".
The only reason this is even remotely viable is because of the loss cap in G5, which doesn't apply at lower ranks. I get why Plarium added it, since for the brief time it didn't exist, G5 was significantly harder to remain in. But it represents a really bizarre situation for everyone else.
The simple solution would just be to extend the loss cap to all the other ranks of arena. Yeah, sure, that does mean that the lower-ranked arenas would quickly empty out as people used the same strategy they use in G5 elsewhere, but surely that's a better alternative than the one that exists currently?