Quick question. Why, after all these years, are people starting to think about creating "AC Tanks" when they have been considered too hard to grind out gear for, useless, can't create dps, useless in epics etc?

What has changed with this up coming mod that people think it will be easier to create one? I know that the DoS line gets a couple of buffs (+2 more to str and con, 20% more hp in stance and movement increase), but nothing to AC.