Honestly Asim hasn’t given much to the show besides violence and fighting. Sana and Sid have given more content to the show than any other housemates. I don’t think people want to see a gym addict working out they rather watch Sana and her antics. Like it or not Sana has entertained where Asim has lacked. Asim hasn’t won any task on his own capabilities. I don’t know but all factors should be taken into consideration not just twitter trends. BTW Sana is much more popular internationally than Asim.