In my opinion, the scaling between Regulars, Rankers, and High Rankers had to get super compressed due in order for SIU to keep everyone relevant.
Like, if we compare how they stack up to each other in S1 and ye olde blogposts versus now, the difference is shocking.
Meanwhile Khun can get the drop on Grande (A Ranker) and have enough time to firefish Berdychi, who later has a hard time with Grande despite how Berdychi is a High Ranker and Grande isn't, Mule Love can somehow fight Fucile, Hansung with help from Karaka's Rankers can distract Cheonhee for a period despite how Cheonhee could literally one-shot them during Last Station, etc.
Also, it's worth noting that when Yuri was fighting Pedro, she was nerfed on account of not being able to use much shinsu or else the Administrator would've been bothered. Yuri compliments Pedro by saying that he could probably make it into Jahad's Royal Guard, despite how she curb stomped five of them at once when she visited Repellista in Ch 113