It's the same picture! The first picture came a few minutes after the second picture. The only difference is that they had swapped another tire already.
2 tires with covers, 2 used tires.
1 tire with cover, 3 used tires.
What exactly do you think is happening in a picture of them setting up tires? They're changing the worn out tires.
I don't know honestly mate, it's just strange how I can see the tread on the furthest tyre in the pile very clearly, but not on the two nearest tyres above it.
But that said, if it's true it used Cup 2s, and it looks like it is, then it puts pay to all the BS "Trofeo R is stickier than Cup 2" arguments once and for all, along with all the BS "All Cup 2s are equally sticky" arguments by boyko and friends. Here is a version of the Cup 2 with the same performance as a damn racing slick.