can we switch the traits after we have chosen one?
I think it should be noted that the "trait" is tied to certain piece of armor (helm, shoulders and chest), and there will be new traits for new tiers of armors (quest, dungeon, raid, new raid tier). So what you see is just one sample, perhaps the questing version, of many more to come.They even say it will replace tier bonus as they will create even more exciting traits (in place of tier set bonus) for later items. You just have to farm for the right pieces with the traits you want (BiS or traits that complimenting your playstyle).So, you may call what you see bland or boring as you like because this might be only the entry or leveling gear.
The word you're looking for near the beginning of the article is "specific" rather than "concise".