Read the thread you are referring to. The previous drop was only temporary and soon corrected itself. This drop was sudden and I have no doubt that it was linked to the algorithm change.
Anyway - this is for Google to decide, not you. If you're just here to criticise you have no place in this thread. This thread is for people who have been affected by the recent algorithm change. Like everyone else posting here (except you) I believe this applies. As I said - Google is the judge here and I am providing them the details they've asked for in this thread. Keep it constructive.