I'm thinking specifically of situations with Palob or Kyle with the Moldy Crow title and Recon Specialist, where you're sitting on a stack of three or more focus tokens. Green dice will eventually fail you, but wouldn't it follow that the more green dice you're rolling, the more chances you'll be able to put those tokens to use defensively?
At the very least, it should be a better 3 point defensive investment than hull upgrade.