Now the pendulum has gone too far the other way. You can't only look at line movement. (8c would be invincible then. It's a small edge that's done well so far this year, at least when I've played them.)
If you use discriminating taste to hit 60%, you're a god. Why would you add a bunch of coinflips to that to lower your percentage and increase your volatility?
Sometimes a line move pushes you onto a lean, but it's still just that, a lean. Sometimes you look at your power ratings, and they don't agree. The weatherman HAS to guess and make a forecast. We're fortunate that we can pass on a game.