Let's face it, it'll be probably about Seven emoting at all. "Oh no, the reserved and coldly logical Borg has lived twenty-plus years without the Collective and has become more human in the meantime? That's not character development, that's a total bastardization of everything that character has ever been about!!!" Most posters will point out it's been twenty years since the last time we saw her, and the most common criticism will be that her cortical node had already almost killed her in Voyager when she became too emotional. And as a bonus, some posters will point out that the Doctor had already scheduled an appointment to remove her cortical node in Endgame and presumably went through it, and it will be disregarded by the detractors without consideration.