Reconciliation was so obviously a precondition of any peace deal; and of any serious ambitions for a self governing state, that the premise of the artcle is completely invalid. The US Congress may just buy the argument, but noone else will. No rockets from Hamas for some time, and even the shred of the argument goes away.
Egypt to hold parliamentary election in 2 phases starting Oct 18-19 (Reuters)
from the article: Palestinian reconciliation could work to Israel's advantage