What compromise? Half code should be in rust?
What does this even have to do with rust developers, The language rust gives us the ability to have more compile time checks, and why is that a bad thing. Do you like security issues in your OS because some dev forgot to handle pointers correctly?
That was what he was talking about at the conference, he literally asked for help about how things work, so he could write better APIs that they are more comfortable using.
But the response was we don't want to write rust.