A3 has historically matched in specific circumstances and sometimes more generally. You can add BMI to the specifics list from when they left Star after being bought by BA in 2012.

However, it seems like that's bitten them, hence the re-launch of the FFP and the tightening of the qualification (now arguably one of the more difficult to achieve for non-European residents)/re-qualification requirements in order to reduce the number of Gold members. Having achieved that, it's extremely unlikely they'll try and increase them again via the vehicle of a status match campaign.