Sumo Technique | Will Roga be able to live up to his potential?

Roga had a standout amateur career alongside Takerufuji and Hoshoryu, but why has it taken him longer to reach Makuuchi and what's stopped him from winning bashos like them?

Please consider helping out my friend, Tumen, who shares an ethnic background with Roga:

ko-fi.com/iggytfs

(note: I realized it may sound like I said Tumen was trying to immigrate illegally but I said legally. He was trying to immigrate legally!)