Ghosts Season 4 Just Made A Huge Mistake With Rose McIver's Sam

Have you ever watched a beloved TV show and struggled to understand a character's sudden change? Recently, I found myself in that situation while watching the fourth season of "Ghosts" on CBS. Don't get me wrong, the show is quirky and delightful, but I couldn't help but feel a bit perplexed during episode 6, titled "The Primary Source". It left me questioning Sam's development, and I couldn't help but wonder… did the show make a mistake with Rose McIver's character?