The perfect map would give us the potential to control and thus to dominate everything. Just because you have a map, doesn't mean you have a vehicle to travel everywhere you've mapped.

My view of theories of everything is somewhat deflationary. I've written some other articles on this topic, if you're interested:

https://medium.com/the-apeiron-blog/atheism-and-the-endlessness-of-explanation-22e72f89d509?source=friends_link&sk=cdc78c5a20c7678da120f27b2fbd897b

https://medium.com/the-apeiron-blog/what-is-the-nature-of-ultimate-knowledge-664642cf8147?sk=73f128be23b11ea1e09a8c3e83db51ed

https://medium.com/interfaith-now/beyond-the-fast-food-conception-of-ultimate-knowledge-227d8d43ad0f?sk=d29bd4319b9f775b4e67a28c104c6b31

https://medium.com/the-philosophers-stone/transhuman-epistemology-knowledge-in-the-greater-scheme-78d68bdc6704?sk=e47050735c56aeda7ec12647bbc090b3

https://medium.com/grim-tidings/what-happens-after-philosophy-eats-its-tail-a9421b7c1f9b?sk=8e0dada2542fa50988d825ac236b536b