Orin, Gortash and Ketheric still had to deal with Orpheus and the artefact. A thing which does not needs to bother Tav. But Jergal, Mystra and other Gods. Shar, for example, who must feel a bit offended, are unlikely to let you do your thing.
Imagine, Jergal struck your name from the archives during the adventure, but could then just as easily undo that, and boom. You're dead.
