Mostly a temporary step on the way to better options unless you are playing for style.
Hermit Purple is best treated as a practical decision page. Use it to decide whether your current drop is strong enough to keep, worth building around, or better used as a bridge while you farm for something else.
Decision Snapshot
Hermit Purple currently sits in C tier with Common rarity. Its PvP score is 4/10 and its PvE score is 4/10.
If you value repeatable progress over highlight-reel clips, compare its match impact against your current route needs before spending another reroll.