Make Bulwark banner give small pulses of contested hp instead of armor

In order to make the banner more of a rally point without completely stripping its healing ability you could make it give small pulses of contested hp instead of armor. This would make it really valuable to stay next to and would make players work for their healing without completely taking the healing away. I was thinking 5-10 pulses of ~10% hp. A good player can still heal a lot but they have to stick next to the banner and be in a fight to do it. Maybe the perk that gives the full bar of contested hp could be replaced with making the banner give armor too?