It can also signal very good planning. If a program is properly specified and all the business logic correct then implementation language is basically as afterthought.

I'm reminded of the software for the Gemini spacecraft. Does it still exist? We don't have any assembly or machine code. But much like today in the '60s the designers of the flight software, considered the assembly output to be an intermediate stage - a kind of temporary mapping from the real program. The real program was designed in "Math Flow 7" - a visual flowchart language for expressing logic. We still have the charts. Does that mean we still have the software? Is the set of charts the software?