As much as I love magical creatures n HP, I'm still not a fan of the MacGuffin that is the Swooping Evil. The whole "suddenly it turns into HANDCUFFS" was too bizarre for me even by wizard standards
And yes, while I did like Queenie initially she
suddenly turned insane out of the blue. I'm also not a big fan of the whole "born with legilimency" thing, and suddenly no longer needing eye contact to use it. It's like if they suddenly came out and said some people were just naturally animagi I'd be pretty irked too. I love the concept of magical bloodlines where you have your seers/your metamorphs/your parselmouths, but turning a canonically learned ability into a genetic one is a bit meh.
It also brings to question, is any of it HNZ canon? Not in terms of plot because that would be ridiculous, but your obscurials, your maledicti, magical concepts of that sort.
Just not half-elves no