Bass are just as active as pike. As for the schooling issue, why should seasons be the same on largemouth and smallmouth? They are seperate species. Largemouth I know from watching underwater cameras do not pair up and are active at certain periods of the day.
Since smallies school so deep, instituting a winter season on largemouth (which are generally found shallower, alongside crappies and pike) would not be hard to regulate.