That's correct. It doesn't contain any locations for 1-DarksPrepperz POIs since it was created with just the base files from the Mod...
However... if you add these two lines to the bottom of the prefabs.xml file inside the Preppo8KJuly World, and have the 1-DarzPrepperz Add On Mod in your Mods folder along with the NPC Mod, they will be added.
V1-Preppo8KJulyCustomRWG / Worlds / Preppo8KJuly / prefabs.xml
<decoration type="model" name="wilderness_npcrileyroo" position="-744,35,-3267" rotation="2" y_is_groundlevel="true" />
<decoration type="model" name="wilderness_npcjohnsmith" position="2448,35,-148" rotation="1" y_is_groundlevel="true" />
If you have already accessed the areas they are placed, they will not appear since that region has already rendered. Setting the Chunk Reset feature can purge that though and allow them to appear. It is also dependent on that area not being visited for a while or having a Land Claim Around it. If you haven't started the World yet, no worries at all.