Question about Tank stats

[Noxifer]

STR/DEX effects on parry was removed as 3.0 hit I believe. And the "STR > VIT" meta was mostly because tanks knew they didn't have to have huge HP pool and could get away with even full STR setup.

Which doesn't prevent the earlier STR/DEX removal from parry influence from having been at least partly because someone may have mistaken the STR tanks for wanting more parry strength instead of just wanting to do more damage, and thought that if we remove those, tanks will go back to VIT. If so, that person must have felt very foolish later on...

I seem to remember the str/dex removal from parry was from patch 2.4X or 2.5X.

[2.0] Player attributes have been adjusted as follows:

• Skilspeed and spellspeed now affect damage over time and healing over time effects.
• The effect of determination on auto-attacks has been reduced.
• Critical hit rate now affects damage dealt with a critical strike.
• Certain attributes no longer affect parry or block.

As for your reasoning, it sounds like a likely reason. Still in a roundabout way promotes the reason "tanks allocated points in Str and wore Str accessories because Parry/Block strength".
(On a separate note, I'm getting kind of tired of the reason "too confusing" being flown about by SE. Fire/Fira/Firaga? Too confusing for En players, let's go with Fire1/Fire2/Fire3. Open glamour restrictions? Too confusing if tanks look... like... mages... moving-on-now! *grumbles*)