If you're going to jump at people for using a weapon because they prefer it (such as Twilight instead of Woeborn), then you may as well jump on them for using a job they prefer as well. You can't rage at everyone just because they aren't a MNK + WHM duo, so why rage at somebody for using a weapon, that while lacking in one area, offers something unique?
Death not proc'ing on important stuff doesn't make twilight inferior to Woeborn, my guess is you do not know ***of what you're talking about. Having a weapon that can basically damage enemies without damage penalties INCLUDING through invincible is far superior to a scythe that will do less damage to given mobs with set damage resistances.
Seeing as how some folks want to make a huge deal about this because I use it, I may as well throw in my two cents.
I use this and will transition to Twilight. Why? Because I have them both and don't have Woeborn.
I'm not going to make a specific effort to get Woeborn because of the current climate o the game. People (at least on my server) tend not to want DRK for much unless they have a completed relic/mythic/emp already. I'm not in any LS, so getting one of those is out of my reach.
I play DRK for the sh*ts and grins these days, as I always have considering I leveled DRK long before DRK zergs started up (even before they messed with the mechanics of haste).