They will need to weigh up the benefits to the public of bringing more competition to the air (more planes), more so than a FF club, which only impacts a smaller number of people who choose to be loyal.
We can agree to disagree on that one, but I think they will barely touch on this topic due to the benefits of greater competition in the air.
Time will tell, we can touch back on this in the next week or two, no doubt
edit: I highly doubt SA's future is up in the air with Australian routes simply because of this, I'd guess little to no impact.