Okay, just to correct this misunderstanding: nothing in Bundestag needed attention of 13 people. Ever.
There are seven factions, each has one vote. There is more people in chat because some factions brought their 2iC to be more flexible and also Kanzler is there.
But total is seven votes. So once you get four, you have majority and thing is approved (unless there is kanzler veto dropped, then you need five votes).
So if there is something easy to decide and people share same opinion, you need just four people. If something is more complicated, then you need more, up to seven until one side has majority. But that´s all.
And by the way, the complaint about Harkonnen stayed unsolved so long because nobody (including RM) had time/willingness/unbiased position to jump on it. It wasn´t about any waiting for voting, because general guideline how to treat it was set up quite quickly. What Bundestag miss the most is some kind of "secretary" which will post what is agreed there.
Generally, I´m personally not against change of the system to speed it up just for the sake of being against the change. However it must be discussed and agreed by majority (if not all), not made overnight by three people and then posted while majority of Bundestag members are not even present and when there are potentially problematic issues which should be cleared before the new system is implemented, not after when conflicts appear.