No, I was not being facetious. I am not a regular user of Python, mostly have been writing/maintaining software in C++ and (in the past three years) C#. I came across it because a colleague (fluent in Python) had used scipy.interpolate in some experimentation and now the algorithm he came up with has to be implemented in C#, so I investigated whether scipy.interpolate could be called from C# and then found out that its source was in Fortran.
But just like Fortran is still used for nearly every math-intense library, mostly invisible for most of the users, I suspect that C will still be around in 50 years from now.
I agree, with his observation that C should be no longer your language of choice for new projects. I personally still prefer using C/C++ for my private software projects, simply because it is the language I am most fluent in. This year I used it for AoC.