You want to run the math?
"The weight of soil over a farm can vary, but for an acre furrow slice, which is the top 6.7 inches of soil on an acre of land, it typically weighs around 2,000 to 3,000 pounds depending on the soil type and moisture content."
The United States alone has more than 2 billion acres. The world has 15 billion acres.
How many planes dropping how much aluminum each day for how many years to produce what you are suggesting has occurred?
And don’t forget - in the video he says it’s up 5x-10x JUST IN THE LAST YEAR. Not over the supposedly very long time this has been going in.
Maybe I misunderstand your point, but I think you’ll find that 6 inches of top soil would weigh, on average, about 2,000,000 pounds per acre. To increase its weight by 5% would require in excess of 100,000 pounds per acre.