Regular blessings are the ones which prevent you from loosing the experience points.
Now- the Twist of Fate is a blessing which prevents you from loosing the Regular blessings in PvP death situations. It does not prevent from you from the lost of experience.1
So no, Twist of Fate is not considered as a "Regular" blessing and Death Redemption will have nothing to do with this blessing.
Now, as per Tibia Guide:
"Death Redemption: In case your character is not protected by all available regular blessings at the time of death, you have the option to purchase the blessing Death Redemption in the Store. Death Redemption will restore all skill and experience points you would not have lost if you had been protected by all available regular blessings. Death Redemption can only be purchased within the next 24 hours after death and only for the most recent death. However, Death Redemption is not available on Retro Hardcore game worlds." 2
It means- YES you can use it. Also answered on the forum by Burchan 3:
> Something i still don't have clearly, if i die with the seven blessing i lose 44% exp and skills, that mean if i buy the Death Redemption, i will regain the 100% of my loss?
No, based on the case your are describing you would not be able to buy the Death Redemption, since you were already protected by all seven blessings.
If you have died while, let's say, being protected by only two blessings (16% reduction), you would be able to buy Death Redemption to retroactively be treated as if you were protected by all seven blessings. Therefore, you would receive additional 40% of your lost experience and skill points back.
1. https://tibia.fandom.com/wiki/Twist_of_Fate
2. https://www.tibia.com/gameguides/?subtopic=manual§ion=characters 5.1.7 Death section.
3. https://www.tibia.com/forum/?action=thread&postid=37885582#post37885582