It's very small thing but it may be the point of ignorance somewhere. Sometime we don't consider some small points during implementation. And here it is :
It’s just an information and could be considered during implementation based on your requirement.
If we have requirement to draw controls/table rows based on any condition then we should use <!-- ko if : <condition> --> instead of data-bind="if: <condition> ".
Because data-bind="if: <condition>" doesn't restrict to creates the control/table row in actual but only controls the behaviour visible show/hide. While the <!-- ko if : <condition> --> restricts the program to create control/row until condition satisfied.