Google Maps Models Importer

Why are there holes in the topology after importing the scan? Also when importing into Blender I have to zoom in a considerable amount to get to the model, I’m assuming the loss of model integrity has to do with floating point errors? Please let me know if you know the fix.
Here’s the .rdc file https://drive.google.com/file/d/1MjGnDw5snDZIpSMBXj-kKUvWVsJ61PRs/view?usp=sharing