Some authors are ongoingly suggesting this pull-down resistors although you don't find it in any manufacturers application note or datasheet. The problem of increased bootstrap current demand has been already addressed.
In fact there's a very small gate driver supply voltage range where the push-pull driver isn't yet driving low and the MOSFET might be already steered to on-state. I think, if at all, this can only happen with logic-level MOSFETs. In my view, the pull-down resistor suggestion isn't clearly substantiated.