Others have increased public votes after a dance off, he might too but Jamelia has shown she won't after repeated dance offs. Eliminations before have tried to maintain diversity, e.g male/female ages, actor/presenter/sports he ticks a few boxes as male, older than average, music background. He also gets more social media and tabloid attention than most.
Dance offs are not about that dance, whatever the assumptions or claims. They are in the production because they give producers more control.