There's not a myriad of reasons the cert would not be approved. Advent has gone through the same process with their London location and knows exactly what is required. If this was a 'first time' I might agree with you.
Your narrative makes no and zero sense warrant holders are warrant holders for a reason. They have invested and supported NWBO through the years especially those that are left now and I know some personally. They believe that NWBO is a success and have had that belief for years now. Why in Odin's name would they sell now on no news. Because some of them woke up this morning and all of sudden realized now today on Sept the 8th that the certification may take longer? They realized that it may take longer for which there is absolutely zero evidence no even worse there are many clues that the certification has succeeded?
Its your emotions that make you write something out of the blue because the SP got a dent today.