A reminder to some... that the Flex fares that need copay are not part of the original Flex fare classes that continue to have no copay.
All copays are required where Flex shares fare classes with Tango, differentiated by the TG and FL fare bases.
So yes "low" "Flex" (i.e. the new TG Flex fares that share the same classes as Tango) requires copay, but if these "low" "Flex" fares had been called something else like "TinkyWinky", then nobody would be complaining about Flex because nothing would have changed.
The thing that sucks for those is having corporate policies that require Tango or the *new* "low Flex" class ranges which both require copay.