the bales are all against the pass. wall, so YES, it moved. if it was a heavier load it may have tipped. I have had loads shift and lean a trailer, not fun!
The only leaners that were a problem was with a flatbed now and then. Find me a big strong concrete building, snuggle against it shoving on that load on the leaning side. Ive had people trashtalk me on the radio now and then with some horrible teasing wondering what in the world am I doing to that building.