It's bad writing. Period.
Helping the North has cost her 2 dragons, the Dothraki, Jorah, Missandei and most of the Unsullied. But she's the villain?
What has Jon sacrificed?
As far as I can tell he still has the North and all of his advisors and friends?
But he's the King?
Sansa should be on the ground kissing her feet but she's plotting
Verys should see the sacrifices she's made but he wants her dead and WHY btw?
It's drama for the sake of drama and it doesn't even make sense