If SE is too lazy to update the traits, stats on bardings could work better. For instance, when you max out tank traits you get a tank barding, put bonus stats on that (+emnity, vitality etc)
Agreed the super rare ones shouldn't have the best stats but they could have comparable stats in certain level ranges.
All ARR Bardings > Certain similar stats
All HW Bardings > Certain similar Stats
All ShBBardings > Certain similar Stats
All SB Bardings > Certain similar Stats ect