I am not really familiar with Korean/Chinese Tier 2, why is yoman being rated pretty highly compared to other signings? His stats aren't really good and he wasn't relatively successful in any team.
This was RA with Yoman:
https://www.vlr.gg/event/1880/china-evolution-series-act-3-heritability/main-event
https://www.vlr.gg/event/1825/china-evolution-series-act-2-selection/knockouts
https://www.vlr.gg/event/1747/china-evolution-series-act-1-variation/main-stage
this is JDG (RA roster) without Yoman: https://www.vlr.gg/event/2096/champions-tour-2024-china-stage-2/regular-season
basically his team struggled after losing him, which in turns made his stocks go up for a lot of peeps
did well in korea with a (imo) meh roster too so when purely looking at results hes one of the very best IGL's you could get in pacific