Understood and granted, but the principle at matter in the filibuster vote is purely one of political tactics, not underlying principles of civil liberties and so forth. You'd be punishing them for a political calulation over how best to acheive the principles you share with them rather than for failing to uphold those principles.

But maybe that's worthy of punishment, if you think that their caclulation is wrong and thus they should be replaced with better political tacticians. I think their calculation was right; I think a filibuster would have hurt the Democrats more than the Republicans, so if I were a Democrat I'd be rewarding them for improving the Democrats' chances in the next election. Your milage may vary, of course.

Yet another perverse result from the sausage factory.