If the Mary's hadn't been at the tomb, I wonder if Jesus would have gone to meet his disciples where they were. He tells the women to have his followers meet him in Galilee. He didn't even go to them, but went on. For some reason, I think he would have gone there even if he hadn't told the women to tell the disciples.
That's kind of the way that God works. He's always pressing forward. We like to trap God into a box and say that He can only do things a certain way. But that's not what we see in the Bible. Jesus constantly evolved his ministry and made it fit wherever he was. It's tough to be truly progressive, but Jesus is an amazing example. JM