I never thought those graphs actually correlate to real time damage.
Those graphs correlate to me atleast more to playstyle like offensive vs defensive.
In this perspective, this list:
T1 Damage; Reaper, Arcana, Deadeye
T1.5 Damage; Artilerist
T2 Damage; Gunslinger, Scouter, Sorceress, Striker
T3 Damage; Summoner, Wardancer, Scrapper, Berserker, Destroyer, Deathblade, Hawkeye, Soulfist, Glaivier, Shadowhunter
T4 Damage; Paladin, Gunlancer
T5 Damage; Bard
Becomes pretty accurate. Ofc Pala + Bard aren’t “defensive tanks”, but they are “defensive support”. (You don’t play Bard/Pala GL in same offensive playstyle as you do a reaper, your throwing in much more defensive buffs and offensive utility)
It also makes your T3 group accurate, as most of those classes in that group, provide quite a lot of off support for the party/defensive support, with a mix of offensive capability thrown in.
They also use similar charts in BDO and it never actually correlated to class strength because that changes every balance patch.
Just more so correlates to what you can expect when you play that class in terms of playstyle, IMO.
I.e high dmg class, doesn’t mean you actually do “high” dmg, it means ALL that your going to be doing on that class is dmg. Whether that dmg is high or not depends on balance.
It could be more clearer I agree, the graphs/charts like that are dumb.