IMHO These guys were notoriously stingy with upgrades when connecting from a CO flight. You had to specifically ask to be put onto the list when you checked in. If not, they'd tell you at the connecting flight that you were SOL and they'd then try to sell the upgrades...

I earned CO miles on AF metal before they dropped out of the program. After that experience I'm loathe to try and earn more now that they are back.

Regarding TAP, does this spell the end of the seemingly little-noticed CO codeshare flights on TAP?