Ok, so where do you see his absence of values? This reads to me like a value-neutral statement. We just don't know them and shouldn't make any claims about them.

I think Stallman would probably agree with the famous Howard Zinn quote: "You can't be neutral on a moving train."

I don't mean neutral in the sense of "having neutral values", I just mean that he does not explicitly express his values. We do not know his values.