The official progression servers are garbage as far as I can tell, especially compared to P1999.
They're not very close to being classic and have a bunch of newer features frankensteined in (like the freemium "marketplace") because they don't have the resources to spend the time actually creating a server that mimics the older eras. For example they're keeping monk fist damage and spell levels the same way they are on live in 2015. The dev reasoning being that it's a pain in the ass to change the code. In other words: not enough time or money.
I'm not intending to disparage Daybreak in stating this, but it's the truth. P1999 leapfrogged the official developers of the game some time ago.