The reason that the Ishiyama War was protracted was because he did not ask Nobunaga for a stratagem like Hideyoshi did for the war against China, and so he was idle enough to hold tea ceremonies too many times at the front.
石山合戦が長期に及んだ点は、中国攻めにおける秀吉のように信長に対策を求める事もなく、陣中で茶会三昧の所業は無為の証左に他ならない。