The problem I have with these leggings is they are not Primaris.
https://www.wildbangarang.com/collections/warhammer-first-collection/products/kids-games-workshop-warhammer-ultramarines-leggings
You can tell by the knee brace. Mk X armor has a distinctive pad that runs over the bottom edge of the thigh, these leggings don't.
I would be anxious
GW would someday force me to upgrade to a taller, truescale wife. This would be a problem, I understand those new ones can't fit into standard transports like my car. Likewise, I would be concerned the rules for the Primaris wife would allow her to keep eyes on me at a greater range, preventing me from enjoying hobbies.
That said, I think the range is a good idea. What does everyone think about the Tyranid version? I might get these for my wife since she's a foodie.