And even better, I think Secret History has actually created a framework where the TV show, movie, and books can coexist. Seriously.
As Joel Bocko said in the Sparkwood & 21 Podcast's Fire Walk With Me Feedback Episode (and I'm paraphrasing him here rather than direct quoting), it's easier to embrace Fire Walk With Me if you weren't a fan of the TV show because there was too much new/contradictory Twin Peaks mythology for us TV show fans to accept easily. Secret History's intentional branching from (and "disregard" of) what has come before seems like quite the familiar echo. In so many ways, Fire Walk With Me finally found its missing sock and completes a much desired pairing.
Here's my advice: