True, but I don't think Knott's EVER had mobile ordering (though they should, at least for some locations, especially in Ghost Town). That said, Knott's also has the arguably faster "Chipotle-style"/cafeteria food service in many, many spots, which sort of relatively speeds up things.
It's not great that SFMM had it, and is taking it away. Let's hope, though, that maybe without, the regular lines will move a bit faster. It's also better now that they have more dedicated refill stations (though they still need at least one, if not two more between Apocalypse and Full Throttle, there's none in the entire back half of the park), so that will keep people who only need refills out of the food lines