Idea for PvE Implementation

HEAR ME OUT! HOLD THE TOMATOES! A problem that I have always had with the idea of PvE in this game is that it would 1. split the player base and 2. be contrary to the vision of arc raiders imo. However, the PvE and destiny-esque encounter potential in this game is massive. Therefore, I propose this idea:

Imagine you are looting on stella montis or buried city or something and you get a key item titled, I don't know, like "Encounter Key" or something (riveting name I know). This key would be a one time use for a PvE only encounter for you and your squad (maybe you could even squad up with more than 3 for this purpose). I imagine that these PvE events would function like a puzzle with arc to fight, maybe even a boss at the end of it, with loot to be had the entire way through. I think that this would not split the player base nor be contrary to the PvPvE vision of the game by requiring you to play the core game to obtain and key and by limiting the keys to a one time use case. Lemme know what you guys think of an idea like this and whether you think its good or not!