Not exactly... It would make for a very boring game if all methods of success worked equally well. (I say "method of success" instead of "killing" because this includes things like rogue sneaking around, etc.)
It is important to have each method of success be better than others in different places, and at different stages of leveling up. Players need to have different challenges to adapt to at every level. Like, we need to learn to use banishers in Coalescense, and con damage in RWTD.
And, it's OK for DPS to be king at low levels, and firewall to be king at mid levels, and stat damagers to be king at the current end game, as long as something else takes their place when the level cap goes up.
All it would take to make this whole issue go away, is to introduce a new monster with either really high CON and relatively low HP, or (god forbid) a plain old immunity to CON damage. Then sprinkle the next mod with a significant number of these so that WoP builds would have to learn a new trick to compete in the new content.
The player base would learn, adapt, and stat damage would turn into just another weapon in the arsenal to be pulled out when useful and put away when not.