Ancient desecration + omen of abyssal echoes roll low tier mods

Pre-conditions
Essence of the Abyss + Preserved Rib + Omen of Abyssal Echoes

Long story short: I had ancient desecration on the body and used omen of abyssal echoes. The first try gave me a T3 flat evasion (that's expected). Hopefully, to achieve t1-t2 flat evasion while having the Omen of Abyssal Echoes active, I rerolled and it gave me t7 flat evasion, which I had expected to be no less than t6. If it’s not a bug, it makes the omen of abyssal echoes useless.

I just waste 3 divines on this type of craft as I wanted 6x omens of abyssal echoes after using an ancient rib + omen of putrefaction on an exceptional base robe. First reveal showed an 80% energy shield and an ES/Life. I was aiming for spirit so I hit the reroll button. The only functional option that came up was 20%ES with flat 11ES which is the level 16 mod. The others were 37 spirit or 40 life which are both below the minimum you should get with an ancient rib.

This issue persisted throughout the craft. First list of affixes was always level 40+ when revealed but on a reroll the affixes offered were below level 40.