Programming languages solve that machine code is hard for humans to work with for large problems and natural language (even when the meaning is perfectly clear) is very difficult (to the point of complete intractability with the level of knowledge and available hardware at the time programming languages were originally invented) to parse mechanically, a necessary first step in translation into machine code a computer could run.

Any problem with the difficulty of clearly expressing things in natural language (a real thing for which there have long been solutions between humans that are different than programming languages) was a problem that was technically unreachable at the user->machine interface because of that more fundamental problem for most of the history of computing (its arguable that LLMs are at the level where now it is potentially an issue with computers, but it took decades of having programming languages to be able to get the technical capacity to even experience the problem, it is not the problem programming languages address.)