I actually agree with this and I see the YouTube videos of these guys making this thick layers of foam. And I basically swirl the brush in the soap got like 2 seconds and have enough lubrication for the 1 and 1/2 passes that it’s all anyone really needs. 3 passes is unnecessary and I’m sure it is promoted by the industry to sell more products.
Dangus got me to thinkin, those people were pretty frugal.
Lets say my way probably costs a penny per shave. The brushy foam method was likely an effort to bring it down to 1/10th per shave or something.