Should you pull for Seven Thunders? | Honkai Impact 3rd V5.8 (SEA Beta)

TLDR: Not Nirvana or Top 2% MA? just stick with Domain of Sanction. An analytical way to justify is it worth to pull 7T or not. 0:00 Intro 1:30 HoT with 7T movesets 2:27 DoS Against Psychic Type 3:29 DoS Against Mecha Type 4:31 DoS Against Bio Type 6:01 7T Against Psychic Type 7:02 7T Against Mecha Type 8:09 7T Against Bio Type 9:20 TLDR: do I need to pull 7T 11:20 7T Divine Key