I have seen several warrers saying they will quit rather than restarting with this. And the only war we have had with no restart bonus has had horrendous restart rate despite being between tags that are historically very good at restarting.

I think fast kills and no restart bonus is a bad design no matter what. You can't lose 2 months of work in 10-15 seconds thats not proportional. If kills took some hours or perhaps days, that would be something different.