Dear Wilhelmus,
Thank you for your comment and questions.
Yes, essentially the correlation that is interpreted as being due to entanglement can be explained due to what is not detected, but is dependent on the angle difference between the photon's polarization axis and that of the detector. This means that a specific region of possible orientations there is a higher chance of not getting a detection.
Prior to the loophole-free experiments, there was already acknowledged the possibility of what was termed the 'detection loophole' where detection efficiency (i.e. not every photon is detected) could bias the result set and falsely cause the correlation to appear to be entanglement.
The use of a Steering Inequality was supposed to account for that by including Alice's non-detects in the statistical calculation that determines the degree of correlation. However, as I have demonstrated, if the two functions I have shown (for Alice and Bob) are used, and the Steering Inequality is calculated on a the result set, there is still violation and the supposed QM 'entanglement' correlation curve is obtained.
I hope this helps you understand my explanation in regards to the explanation for entanglement using Classical Physics.
I will have a look at your essay too...
Best Regards,
Declan