Perhaps worth noting that the UuA aspect of the BAEC programme seem to have slipped off the radar. I wonder why that could be?
Fly – Outstanding Benefit
2015: British Airways Executive Club (Lounge Access)
2014: British Airways Executive Club (Upgrade Using Avios)
2013: British Airways Executive Club (Upgrade Using Avios)
2012: British Airways Executive Club (MFU/UUA/Avios Upgrades)