This sounds like good advice to keep access to a loan when it may be difficult to get one! But isnt redraw just accessing money that is alredy yours? same as money in a savings account? Wouldn't you want the loan available to be able to borrow additional money on top of redraw?
No, a redraw and an offset are two separate things.
An offset is your savings, a redraw is basically you lending money from the bank.
I'll let one of the brokers explain this in more detail