Friends to brothers

In the Gospel of John, before the Crucifixion, Jesus said: I no longer call you servants, because a servant does not know his master’s business. Instead, I have called you friends, for everything that I learned from my Father I have made known to you.
After the Resurrection, Jesus said to Mary about those same men: "Go instead to my brothers and tell them, ‘I am ascending to my Father and your Father, to my God and your God.’”.

He calls them not friends but brothers. Is that because He had now been through death, and in that taken on the full human condition: not just the living but the dying?