If we did, we should apologize. Our faith is flawless, but our teaching of it is always imperfect. Certainly, God is always ready for us, but we are not always ready for God.
Purgatory is our admission of that fact.
God will never impose himself on us. Purgatory allows room for that to happen if we so choose. I mentioned purgatory as a place of hope. Maybe this is where our prayers come in. We pray for the people in purgatory, we suffer for them, we pull for them just as surely as we do for anyone struggling for a prize.