This, however, is only so where natural or legal persons exercise a professional or commercial activity (broad interpretation of household activity).
Miners =/ controllers as their function is limited to validating transactions submitted by participants as they dont det. the means and purposes of processing.
I have an upcoming paper on this that reaches the same conclusion and discusses options.
Note, however, that @CNIL is intentionally vague on many aspects and that courts won't necessarily agree with its assessment.