Lol. Wearing those on my 2 Ls.
Rationale: None of the sr robes are worth maxing, except emerald robe for bozel (only if you don't have better ones like galaxy cloak)
These robes, no matter how bad their passives are, still have superior stats compared to sr ones. They are easy to max without using ores since they drop often and are useable.
For SSR, I always keep a copy of maxed one no matter how seemingly weak they are, as they might be good or even the bis of future chars.
Addon:
Why death robe is not junk and I use it on Liana.
1. healers are usually magnets to enemies. They like to attack healers. Most of the time I have a tank protecting her, but there are times when I don't field any tanks and actually use liana as a bait.
Healer with shrine maidens are very tanky, 2nd only to lancers. (Klose which u guys will get at the TiTS collab can use lancers, making her the tankiest healer) It takes a Leon with chivalry and thousand hooves to rout my liana with lvl 8 shrine maidens.
2. Death robe reduces chance of getting critical hits, enhancing survivability. It also slap a increased dmg taken debuff to attackers, making it easier to kill the attacker next turn.
3. Counter high def tanks like ledin/vargas+tiaris in arena. This combo is very irritating to kill, especially if the tank has overlord badge. I will use liana to bait the tank to attack her, slapping the dmg increased debuff to let him take more dmg for my dps to kill. (Do not work with Landius)