Why not call them out. It can help others know what to expect with those libraries, and it could inform their maintainers that they might want to be more careful with breaking changes if it causes real pain to their users.
Even if I did, other people would no doubt have other opinions. And this topic was about common lisp and not really suitable. I had some great years with Common Lisp, I’m having some great years with Clojure. Both have parts of the core language/runtime that I like, and that are different from each other. My original reply was a contrary opinion to another poster on the value of standards. Wielding the original CLTL silver book and programming in CL was a joy. Standards made that possible across multiple implementations of CL.