It was that nasty grind from 46-56 that killed most of us. Also what incentives are there to reach level 56 ? It def isn't the antignome and banish set. There is nothing rewarding to loot, we're just waiting for mini events/seasonal events now, sadly.
3 maps on endgame, drops equivalent to 1/1000 or non-existent, just look at that antignome thief event after the update as a prime example, people just gave up. Loot devalued due to ppl running the same map over and over and over again, also running same old, same old tombs zzz. Don't take this post as something negative but more as constructive criticism (STS).
If you want ideas STS, you only got to read the AL SUGGESTIONS category on your forum.