The squall outfit is the last Vet reward because of this reason. It doesn't need a nerf because you are guaranteed to get it. You don't even need to wait 4 years, it is literally only locked behind $720 worth of sub. You are right that it is a lot of money and a long time, and I would not like one that is longer, but nerfing it would spit in the faces of those who did wait that long, or buy sub to get them.
Perhaps they will be nerfed around 5.0 when the new vet reward is well into its lifetime, but not right now. (at which point you will be ~2 years into the 4 + current playtime)
no, there is no logical reason for this answer other than "I want instant gratification with my wallet".
Edit: Actually... yeah! put them on the mogstation for $720
