No, I don't think he was. He was a Roman stationed in an outpost. The locals are upset about this one guy claiming to be the son of God. Pilate's not upset because that's not against Roman law. He has nothing to lose by sentencing Jesus to death, if he wants to. He has the full support of most of the populace, apparently. The only thing Pilate might fear, according to you, is some sort of spiritual repercussion.
But anything that would suggest that is not part of what would have been public record. Do you understand what I mean? I mean the conversation between Jesus and Pilate would have been public record, so it would be unwise for any biographer 60-80 years later to make up something completely false, because they might be proven wrong by Roman records. But it's very easy to make up a conversation suggesting that Pilate's wife said something to make him uneasy.
Although in the end, it doesn't matter. Pilate's role is almost nil. He simply refused to get involved. To me the only interesting element of that whole scene is that Jesus did not admit to being the Son of God when it meant certain death, yet Christians insist he was a willing sacrifice. If he was willing, he'd have admitted it while on trial. He clearly wasn't willing.
Whatever He said; it WAS enough for His accusers.
Like the famous quote made about pornography, "I know it when I see it...."
"Why do we need any more testimony? We have heard it from his own lips."