Hi Guevarra,
Looks as if the website version is still being normalized per formula unit, rather than per atom, as per this post. I believe changes to either the units or the backend pymatgen version for MP are on their way.
I’ve modified the version of the colab notebook to demonstrate the differences between the versions, but I’m not sure if the changes are showing up for others or not. Thanks for catching this, and let me know if I can help further.