You may be right. Marvel wants to be cute and have easter eggs and stuff.
but to me some of what you speak was the beauty of it all.
I knew going in that the homage TV sitcoms was all false from the start obviously but masked a true dark core. I never imagined it could be this dark, but that is the basic thing, Wanda didn't get to, or won't process the grief of Vision etc and this is what happened.
It does mirror a lot of her treatment in comics, over years, so this is actually an abridged way of looking at her tragic history.
I have a feeling, maybe, that both of them or one at first then the other, will not be long in MCU, like Downy or Evans. But who know?