Isn't this trivial to disable?

I apologise in advance if I am mistaken, as I have no experience with react. Perhaps there is something I am missing. To me though, it appears as though to a browser extension wishing to manipulate your DOM, this would be trivial to disable.

Couldn't an extension simply inject some Javascript between the declaration of the obfuscation functions and the script in which they are used, simply overriding them to directly return the node unmodified?