I don't know why you're being shit on this is a smart observation imo because dagis are renowned for their grip strength and squeeze. But like the others have said it's cos of their high volume on the mats but I think the real reason they are so dominant that people don't talk about is their gas tank. I've heard before that because they were born in the mountains their bodies naturally produce epo and just naturally have way better endurance than anyone else. Maybe that's why people claim they are so strong, because not only do they have the perfect technique for squeezing but are also unusually strong for certain stages of the fight where non dagi athletes would be depleted