I disagree.
Around the 28 second mark a similar sun glint can be seen at the gates.
The glint at the weir appears simultaneously with the camera’s aperture opening up.
The “bubbles” at the beginning of the video are a shorter snip of extended view at 8:58. Note the angle of the “bubbles”, lower left to upper right. At 9:26 note the shadows cast by the trucks, the same diagonal.
The only time “bubbles” appear is when facing toward the sun, never with the camera’s back to the sun. You can see the orb of the sun in the reflection.
By the way when I view the youtube it is not blurry as in the first picture but focused as in the second.
I have seen all the posts and videos of the alleged “bubbles:.
I never thought they were bubbles, either reflections or debris.
So you aren’t able to see the cluster (froth) emerge from the soil, flow upward, and then spread in a wash at the surface?
The helicopter camera operator, also saw this dynamic action. Except his view was not at a 1 sec step rate or even 2 sec step rate that youtubes are uploaded to.
It’s ok to agree to disagree.