I remember in turtle wow as a fury warrior using bloodthirst and proccing enrage during crits, I see that it does not apply here in octo.
Here is what I have found in tutle wiki about the warrior class changes:
"Bloodthirst has been reworked to the following ability: Instantly perform a reckless attack dealing X damage plus 30% attack power, and you suffer a self-inflicted wound for your recklessness.
Damage Values: Rank 1 (Level 40/Talent): 80 Flat Damage Rank 2 (Level 48): 100 Flat Damage Rank 3 (Level 56): 120 Flat Damage Rank 4 (Level 60): 150 Flat Damage Developer Comment: This self-harm does half the base damage, half the scaling and takes your armor damage reduction into account. This self damage can critically strike you and proc Enrage, this chance is equal to your physical critical strike chance."
https://turtle-wow.fandom.com/wiki/Warrior