All the new pink weapons from the DLC are terrible anyway, so you aren't missing much here. Like DigitalIP said, using the save editor is a very easy way to get those crystals if you really want them.
I'm seeming to have an issue with the editor where my kill skill bonuses increase exponentially. Even after the buff indicators fade I still have the extra movement speed, fire speed, etc. This generally means after clearing a handful of dens I'm moving at 20,000 movement speed and firing a little less than that. Any reason for this?
Update sent to Chris, changelog: - Edit: Seraph Crystals (thx WoogieMonster for season pack gift)
It's my pleasure to be able to give to CH. Without the services provided by this community it is very likely I would have been forced to give up gaming a long time ago due to physical limitations. I am forever indebted to Cheat Happens.