If it doesn't make a hell of large difference, why proposing it in the first place? For USF it does make the difference: no atnade at this moment of the game and barely one zook if you decide to go lt first.
If you read past the first 9 words with will find more! For example directly following where you stopped reading is "when it comes to spam". If you are already planning on spamming them 5 fuel isn't going to make a difference one bit because it's the MP that will drain you.
The 22q is incredibly squishy and doesn't need hard AT to push it off. Stick to hard cover and watch as it takes far more damage than it deals and has to fall back for repairs.