New loophole free EPR test with photons by Wittmann et al

[Demystifier]

As I understood all discussions until now, "nonlocal" means a correlation that can not be explained without something "spooky" as instantaneous "action at a distance". And I assumed that "Bell-nonlocality" is essentially the same, but with precise arguments that lead to that conclusion as presented by Bell.

Yes, that's correct.