Libet experiment

In the Libet experiment, the subjects said they acted freely but their rp came before their decision. I thought I could excuse the feeling of freedom they said they had in two ways. One was that they didn't know what free choice was, that there had to be discretion and not just raising their hand arbitrarily, but because it came to them from some instinct that came from them, they thought it was freedom. And the second excuse was that they were indeed free, but some chose to go with the rp and some didn't, and they really did it freely. What do you think?