did we win?
Just because they paused this offensive, does not mean the war is over.
I believe it was a case of testing the waters. These are some of the questions they were looking to answer
Did the pop up cause those who received it to buy premium?
Did the pop up cause those who received it to turn off add block for that site?
Did the pop up cause those who received it to not use youtube at all?
Did the pop up cause those who received it to move to third party front-ends?
My guess is they are looking at the data now to answer this question: (the only one they care about)
From the data gained, is it likely that going on a full offensive against add-blockers make us more money?
If yes, the offensive will begin.
If no, they will look at other alternatives.