You make valid points, & I expected a reply along those lines. I do not have access to actual facts & figures which is why I used the words "in my view" as the whole thing is just my opinion.
I also wrote that the stock fan has "some of the load lifted from it etc. etc." as you are correct, there is not enough airflow to cancell out the load altogether.

I was interested in your comment about the viscous coupled fans as I rather like them. They pump the maximum amount of air at low speeds, when you need it most due to lack of road speed, but are speed limited, usually cutting out completely at somewhere near 3,000rpm, so they drain no power from the engine when you floor it.
They are also thermo controlled, cutting in when the temp rises above a predetermined figure, but simply freewheeling when below it.
If you have a dislike of them then I presume it's for a reason, probably something I haven't thought of, & am interested to know why.