There are those who suggest that Pilate is portrayed positively for the same reason the early Christians broke with the Jews on a lot of their rituals and purity laws: they were evangelizing to the Romans and wanted to appeal to them. So it wasn't a Roman that executed Jesus, his hands were simply tied and he protested it then.
These are the thoughts of historians who read the Gospels not as the inspired word of God but rather historical documents written decades or more after the events. So take it for what it's worth.
Interesting. I’ll have to ponder that, because it makes sense. The authors of the Gospels and the epistles never blamed Rome. If anything they lay the blame at the feet of the Jewish religious leaders, while also admitting the sins of mankind put Jesus on the cross.