The first downlink disconnect was at 74 seconds, 670 ft altitude, and 1490 ft distance. I'm sorry, but I simply cannot see how you could have had VLOS and were able to distinguish drifting (whatever that means) at that distance.
The log data, on the other hand, clearly show what it was doing, and why, i.e. your stick inputs. Before downlink was lost you had been driving it NE with around 2/3 elevator at 35 mph. 0.6 seconds before downlink was lost you centered the elevator stick. When downlink was recovered 18 seconds later the elevator stick was still centered, and the aircraft speed had dropped to 6.5 mph, but still moving away to the NE - that was the best it could do in the wind while trying to hold position. It was not simply drifting. That tells you how strong the wind was.
