The problem (and solutions) are in reference to Apple using proprietary HDD connections. And incidentally, flipping the sensor connector is not a guaranteed fix, it is HDD dependant. Read:

https://blog.macsales.com/27918-owc-in-l...

And 3rd party Fan Controller software works fine, just be aware that Apple can effectively make 3rd party Apps non usable at any point, so what works fine today may not work at all tomorrow. Hardwired DOES overcome this possibility.