The fact that he was humilated, tortured and executed in the worst way possible is a very vital lesson.
Loving others is a verb, it almost always takes sacrifice. From a woman working to make her family a meal to martyrs dying for their flock. When Christ asks us to love thy enemy, he literally showed us how it's done in the most extreme fashion.
If he could be ripped to shreds, nailed naked to a piece of wood and laughed at, we can surely put up with insults on an internet forum, forgive our family members for slights and take slaps in the face in order to bring a little more love to the world.
How he died was prophecy and extremely vital.
Isaiah 53:5
But he was wounded for our transgressions, he was bruised for our iniquities: the chastisement of our peace was upon him; and with his stripes we are healed.
Psalm 22:16
For dogs have compassed me: the assembly of the wicked have inclosed me: they pierced my hands and my feet.