Data point. A few days ago, I was in F (cash ticket originally booked in A but changed to F due to rebooking). My travel companion, no status with M/M, was originally booked in I. For weeks the flight was F3A1. 48 hours before departure, it became F3A3, but no award available. 24 hours the same story. On the day of departure, I called LX CCC who confirmed availability for my travel companion. I paid extra 44,000 miles and 50 EUR to change the ticket from I to O. The flight went 8/8, with two more pax deciding to pay cash during airport check in (1250 CHF).