Crucifixion was a uniquely Roman form of punishment. It clearly did not help him in his missionary endeavours. This is the most certain of all the events in the life of Jesus. Of course we might well ask why sQ makes no mention of it. Actually we should not be too surprised.
Different people deal with traumatic events in different ways.
The author of sQ had long before suppressed it. Many people find this assertion difficult to accept. However the evidence for it is extremely strong, and as it constitutes a vital key to understanding the historical Jesus, it must be tackled 'up front'. Jesus' dramatic entry into Jerusalem on a donkey bears the hallmark of historicity. But to offend the loyal citizens of Rome, where his gospel was probably first published, would not have been the best way to bring about their conversion or to support their nascent faith.