yeah kj util is good for stall but controllers can basically also just stall and do more whether its simply the smoke or its smoke + paranoia or smoke + astra suck or smoke+ viper/brim molly. legit every controller has site stopping util which is why u see double controllers bc they have replaced sentinels. Also dobule duelists work against sentinels a lot bc they can bypass the site stopping util, like waylay dash or raze satchel or yoru tp, u can just tp or dash backsite and have 2 ppl on site instead of only 1 on site which u could just isolate and take a 1v1 with or maybe 2v1 but u cant do that against a double duelist comp, so double duelists also makes sentinels worse.