You absorb Blood Echoes (I'm not telling you; I know you know that), which are "the echo of someone's will. Like a ghost is the lingering image of a person, Blood Echoes are the lingering presence of their will that stays long after the person has passed away."
Uh huh, sure. So you're absorbing souls, got it. So much for the blood connection.
You know what point I'm making: it's a reused mechanic and doesn't fit the lore. You can try and justify it if you want, but you know it's bullshit.
It didn't ruin the game for me or anything, but it was immediately notable and did strike me as not fitting the lore they were establishing.
Using frost-based or blood-based attacks doesn't mean they should be immune to these effects being used back on them, no? It's like saying I should be immune to gun shots if I use guns in battle.
I wasn't necessarily talking about that myself. There's a million things to nitpick on if one wants to. But I sure as hell do not care to.