see the earlier videos
https://video314.mymusclevideo.com/mmv//media/videos/mp4/130278_720p.mp4
See how clean, soft, wet and pink it is when the foreskin is retracted.
I think maybe you are cut, so you don't understand how foreskin works - it is like the eyelids - it can close and open. It keeps the glans moist like the eyes, and also protects from scratches and stops it from drying out and becoming rough and dry like cut cock people. Imagine if you kept your eyes open forever - it will still work but not the same.
Also you can clean it like eye gunk or teeth. It takes the same time to clean as cut cock, maybe one more second to pull the foreskin back.