Comment by Llamamoe

Rubbing your eyes thins their keratocyte layer and is a risk factor for eye deformation and damage: https://pmc.ncbi.nlm.nih.gov/articles/PMC6848869/

I have no idea if the technique you linked works, but anyone stumbling across this should be aware that it has very real and potentially serious risks - if rubbing them at all increases your odds of keratoconus, just think what 10min/day for months will do.