Hide footer wp

Hide all,
Reviewer says that footer need to be hidden and show only when add menu from wo admin.

In my theme i use redux with option to add footer copyright, when reviewer test theme, don’t enable redux plugin, so footer area is empty.
His advice is to hide footer and show only when choose menu.

The same with sidebar menu responsive, should he disable until menu header or mobile to be chosen.

How you boys deal with this issue?

Cheers