not convinced at all, gibbing is a lot easier now, you will not get a kill each life.
think about it this way: perfectly equal skill levels on all players - average k/d of 1. one life you kill someone and you die. another life you kill 2 people and die. another life you kill no one and die
lets say 1/3 of the time people get revived, which is imo fair, and largely depends on the map. defenders typically revive each other more, attackers die more.
so in about 10-20% of lives you will not kill anyone and get the 10hp bonus. imo thats not bad, considering its max hp.
now if you consider that an engy on chapel dies all the freaking time with sth like 0.2-0.5 k/d, this percentage might easily go up to 30-40%