When they are available for free to general public, is absolutely another.
So I'd guess you'd agree with me that the MS deal isn't actually fundamentally different. And who knows how many other, similar deals have already been made?
1. When the MS deal was started, it was about "including images in the MS clipart gallery" which meant as part of the Office products. I wasn't aware there was a website that anyone can go to and download the images. I am not sure that this was there when the deal started.
2. The deal was promotional in that next to the image it says "iStock" with a link and - at the time back then - included a referral code and a link to the image on iStock. So in case someone wanted a larger version of the image, he could get it. And for anyone signing up at iStock from clicking on the link at one of my images I would make $10 for the referral. Nowadays it doesn't work anymore since most of the links are broken and the old referral program was discontinued anyways...
I don't say any of this would have provided more money to the contributor in general. But given the three images they have chosen from my portfolio, I would certainly agree today to a deal with those conditions.
With the Google deal there is no promotion, there is no linking back, there is no way to find the image if I want it larger. So there is not even an option that you can add some earnings in addition to the $12 you got now.
Also it only includes images that are available on Getty and this - by definition - means from the perspective of an iStock contributor we are talking about the "premium content", Vetta and Agency. So it's not just a random file that would go away for a dollar or five dollars if sold. When the MS deal was made, most downloads would only make 30 or 80 cents. Given the odds how many of my files got more than 20 downloads at that time, I would have thought a guaranteed $12 plus the option to make more would have been acceptable.
This time it's about files that make 15 or 30 dollars for each single download on iStock. In comparison $12 for unlimited redistribution appears quite few money.
I think that does make a difference in the deal.