Yes and no..
... DDO has evolved to kill mob faster =Win ...
Dead toons do no DPS.. so you need to be able to take a hit while keeping yourself alive.
but..
You start sacrificing DPS for Defenses.. so while you can take 1 more hit, you are taking longer to kill the mob..
prolonged battles are bad..
Mobs don't run out of resources and continue to damage at full output, players lose momentum relatively quickly.