Since the orb that you spawn with was removed, how am I supposed to create my own village? Or was that removed as well?

You could use an older version of MCA on a flat world, use the orb, create the village, and use structure blocks to copy it into your new world. Alternatively, you could skip using a new, flat world, but that'll delete ALL the villagers, with no way of going back.

NOTE: Cheats have to bo on. MCA Village will take ~6 32 wide x 32 long regions, 32x32 is the max length and width for structure blocks.