Documents required for Stage 2

Hi all
my Indian friend recently got his visa from outside the UK. He told me that he submitted only his endorsement letter and passport as stage 2 documents

however, the document checklist, which appears after you pay the stage 2 fees, requires many documents including a proof that my dependants will remain at home country? I mean why? I want to take them with me.

It also requires many other documents such as bank statement, house deed and plane ticket.

What did you guys provide for Stage 2?

thank you

I had provided documents as per checklist to be on a safer side. I guess checklist is not customised to global talent visa documentation requirements and there is evident mismatch