I think Mark is correct. Dropping them wouldn't give that kind of streaking. Are the patterns of the streaks the same on each sheet? like booking. That would tell you if it was something in the wood. Some natural streaking is allowed on one side, but I've never seen that much before, and it don’t look natural, looks like glue streaking to me or like the bundle was stood on end in something. And we know they don’t store plywood on end. If you don't mind telling us, what did they charge you per sheet? That would help us know if it was discounted or not. Those look like 4 x 8 sheets, don’t think I've seen true Baltic plywood that wasn't metric. How many layers does it have?
In any case, our opinion is not going to help you much. I would call the seller, that’s a big order; he should make it good unless it was marked down! They will not want to lose a big buyer like you. Most of us can only get 3-4 sheets at a time. Let us know how it turns out.
The TX one
Cut it twice, and it's still too short!