I don't either BUT it was just a way to show you there are other explications and with a WAW normal logic is not always right. I use that technique more for negative signs. I find a less negative reason for it and this reduces the power of the negative sign, as it is possible another reason exists. I don't have the time to explain it better but hopefully you get the idea.
R 25 years M 14 years S11 & S13 Working on it alone since Oct 2014 M in trouble a lot earlier (~2 years) Feb 2016. 1st R chat in a yr. Next R chat Aug'17 Still together