I think this definitely is the case with Himesh who always supports his contestants more than needed, even if they were wrong. He always praises them.
The two also support each other's contestants so that public thinks they are good singers by giving them high marks. Himesh and Ismail always try to justify their contestants if they do something wrong, they always give unwanted explanations, to prove that their contestant did nothing wrong. Vishal and Shekhar never do this, if someone is wrong then it's wrong there's no need for giving explanations to why they were wrong.
Vishal, shekhar and bappi da never does this