Well, yes, the Common Lisp standard library is showing its age in some respects. I think if you're aiming to use CL in production, you have to plan to paper ove

Well, yes, the Common Lisp standard library is showing its age in some respects. I think if you're aiming to use CL in production, you have to plan to paper over some of the standard library deficiencies with third party libraries or custom implementations. And then your concern is already accounted for. (This goes for many other languages too. C, JavaScript, Java, Haskell, R, Perl -- they all have their "holes" in the standard library that need to be filled in.)