The exact quote I was responding to in my essay:
"When oil paint replaced tempera in the fifteenth century, it helped painters to deal with difficult subjects like the human figure because, unlike tempera, oil can be blended and overpainted."
In support of which you now cite... Frans Hals, a sui generis painter who worked two hundred years later. I'm surprised you chose him over El Greco, who at least is within two centuries of the time period under discussion.
It's been entertaining watching you try to walk your various misstatements about art history back in this thread, but I am somewhat surprised by this habit of calling people who poke holes in your writing "trolls", given that you are the author of a celebrated taxonomy of online argument that places name-callers among the lowest of the low.
Weenis.