USE HEROES DURING WAR - please view in hopes that supercell will see

When clan wars first started, supercell allowed all upgrading defenses to work during war so that bases could be at their full potential. Even upgrading heroes are still in war for defense! Now why can't they be allowed for offense as well. It would only be fair and make sense. You can't be at your full potential without those heroes by your side. They can make a huge difference and can even be the reason why you win/lose a war.

This has been brought up so many times that people are probably sick of hearing it, but why has supercell not responded to this issue yet? Does anyone have an answer? It can easily be resolved by either just including them as part of your army or even by upgrading them through the laboratory instead. Feedback is much appreciated.

Thanks.