Who cares? What's "logical" about 20 years? 10 years? 5 years? 6 months? House detention?
In every single sentence handed down ever, some though it too lenient, some though it too harsh.
What's your point? 
There's something cute about assertions made with no attempt whatsoever at logical justification. You can say absolutely anything you want to, and the absurdity is less apparent than if you tried to justify your statement. "Yeah, 20 years? Sheesh! He should have been gassed and cremated, for telling those d--n Israelis about those PLO weapons shipments!"
Who cares? What's "logical" about 20 years? 10 years? 5 years? 6 months? House detention?
In every single sentence handed down ever, some though it too lenient, some though it too harsh.
What's your point?