From your link:
What about older graphics cards? In theory, FSR 2.0 should still work, but the gains may not be as pronounced according to AMD.
Assuming it works at all (the above example was an AMD provided game,) you have a situation where the performance improvements are lower than fsr1.0 and the improvement in graphic fidelity is debatable whether or not it will be that much improved. Maybe CCP will implement it into the game, but that takes dev hours.
So yeah, I guess fsr 2.0 is the most realistic option, but CCP might have reasons why they didn’t implement it.