HUNTR/X is connected through the Honmoon. We know this, we love this, THIS IS NEVER EXPLORED ENOUGH. In the plane scene alone, there are so many things that the girls do that make it so it seems like the Honmoon connects them in more ways than are explored in the movie.
Rumi launches a kettle at Mira like it's nothing, and without even turning around Mira grabs it and beats the crap out of a demon. Then Mira chucks it to Zoey, who then fills her girls cups without even slowing down.
I think the girls have slowly been becoming more and more connected as the years go on. When they started, they couldn't work together at all. They kept tripping over each other, and Celine was worried. She knew she could tell where her partners were no matter what was happening.
It starts slow. Mira reaches out to catch Zoey without looking, and quickly adjusts her position. It's subtle, but Celine sees it. She knows the Honmoon sees it too with the way it hums in satisfaction. She knows then that the girls are going to be fine.
It happens so gradually that the girls never notice it. They just assume that their teamwork is getting better. They assume that because they've been working together for so long, they just know when one of them is feeling down.
It takes years for Mira and Zoey to understand why they feel the Honmoon pulling them towards Rumi. They feel a soft twinge of shame every time they comment on a demons patterns. They feel like their throats are closing every time Takedown comes on.
After the Idol Awards, the girls go talk to Celine. She's shocked they don't know, but she also knows her girls are dense as hell, so she explains that the Honmoon links their souls. That's why when Rumi started singing at the Saja Boys concert, Mira and Zoey were the first to react.
That's also the reason why most hunters end up in a relationship with each other. It's easy for them to be together because their souls are almost one with each others. It's easy to live together because you always know what to do and how to help.
I was blasting How It's Done when this came to me, so here you go. I paused packing to write this at the speed of light for y'all