The 2 emails were sent to the same audience. 50% got variation A, 50% got variation B. Variation A got 102% more donations. Since the average donation amount was the same in both versions, version A generated MORE THAN TWICE AS MUCH income as version B.
One of the reasons might be that the video distracts people from the 'buying' process. The other reason is that the donors apparently liked the tangible aspect; they saw exactly what would be bought for their money.