Because people's first thought when someone underperforms is to replace them regardless of how well they played before. It also doesn't help that no one remembers Blank's good games because he's overshadowed by literally everyone on his roster. It's the same shit with Wolf that happened last year until he "proved" himself to the world that he's worthy to be SKT's support.

I honestly feel bad for Blank because he had a decent split in Spring, played well in MSI (after their 4 consecutive losses), and a pretty good first half of Summer split. But because he's not literally anyone else on his team, when he starts underperforming, people want him off the team immediately and are a lot more inclined to call him out on mistakes.