There's a well-known phenomenon where a person who has just learned a programming language will tend to write code that resembles the idioms of a different language that they have more exprience with, until they learn to write properly idiomatic code in the new language. For example, someone coming to Python from Java might write so-called "Java-flavored-Python" until they become more familiar with how things are generally done by experienced Python coders.
Your comment comes across to me as "I run a project written in C-flavored-OCaml, and the last thing I want is for someone to come along and pollute it with properly idiomatic OCaml". Because otherwise, if you had good reasons to choose that language, and your code takes advantage of the language's strengths, wouldn't the code already be "baroque" to some degree? Why would you assume a new person would make it worse?
That's not what it sounds like to me at all. To me it sounds like they have some FFI into C and that OCaml may just be a part of the larger project. There is nothing that indicates that they write "C-flavored-OCaml."
You can look at the project yourself: https://github.com/libguestfs/virt-v2v I've been writing OCaml for 20+ years and C for 40 years, and other contributors have similar decades-long experience in programming.
Your comment comes across to me as "I run a project written in C-flavored-OCaml, and the last thing I want is for someone to come along and pollute it with properly idiomatic OCaml". Because otherwise, if you had good reasons to choose that language, and your code takes advantage of the language's strengths, wouldn't the code already be "baroque" to some degree? Why would you assume a new person would make it worse?