And yeah, as I think about it I agree with the Jaromilla concerns too.
She's clearly not a fan of the checkpoints idea. If we had a really strong reason to want them that would be one thing, but as it is they create just as many problems for us as they solve imo. Given that, I think it's best to err on the side of not making our friend's life more difficult, and avoiding the risk of looking like we're poking our finger into Polar affairs or undermining her position.
Sometimes the simple uncontroversial option is the best.