T1 actually was performing decently well before the "help sewer" incident
Since then it has been so bad that they lost to a t4 team like vexo #63 NA (https://www.vlr.gg/91773/t1-vs-vexo-esports-knights-circuit-monthly-2022-april-r3)
Before the incident:
Win Vs BBG
https://www.vlr.gg/64763/built-by-gamers-vs-t1-nerd-street-gamers-winter-championship-open-14-r32
Win vs KCP
https://www.vlr.gg/64781/t1-vs-pioneers-nerd-street-gamers-winter-championship-open-14-qf
One map vs Guard
https://www.vlr.gg/64784/t1-vs-the-guard-nerd-street-gamers-winter-championship-open-14-sf
Win vs EG
https://www.vlr.gg/67314/t1-vs-evil-geniuses-champions-tour-north-america-stage-1-challengers-uro32
Win vs GenG
https://www.vlr.gg/67326/gen-g-vs-t1-champions-tour-north-america-stage-1-challengers-uro16