Well you also have to account for the fact that they've spent a lot of time working with their tools and are quite invested in them.
Perhaps they would balk at the idea of writing a kernel in Haskell, but it has been done before.
Perhaps they would balk at the idea of writing a kernel in Haskell, but it has been done before.
Functional programming's unpopularity is not rooted in any real or imagined inability to write operating systems.