Hong Kong needs a time-out from self-serving legislators
In the Western mindset, filibustering is procedurally correct and therefore lawful. This is based on several thousand years of blind belief that law is ultimately traced to God, and therefore rules should be obeyed and abided by.
China, however, is a godless country, and multiple deities provide ethical role models. Laws are judged by whether they are consistent with common sense and are workable. Legality has no overriding authority, and in fact most Chinese think that rules should be adaptable to changing conditions and not be rigidly fixed.
As such, filibustering as a practice is by itself neither good nor bad, but a procedural loophole that can serve a purpose. If that purpose is good, then it is OK; but if it is bad, then no way.
In other nations' parliaments, a filibuster is employed to stall the passing of bills to stimulate further debate and buy time for a possible reversal. In our case, the battle lines have been drawn. There are no further debates inside or outside the Legislative Council, and no new points raised. The result of the vote has already been written on the wall.