I don't agree with Living Dead is weak. The heal requirement allow us to do some tricks which is impossible with Hallowed Ground for example.
You launch Living Dead and for severals second the healer can ignore you.
You fell at 1 hp be undead and the heals can heals you or ignore you if Benediction or if some hp have been already heal (you don't have to have 100% of hp but the total of hp healed need to be 100% of yours). I personnaly hope they will never delete the heal requirement.
They can adjust the amount but the 10 sec before et 10 sec after is really needed to me for some mechanics skipping.