Part of the core design was the risk that maybe another raider could turn on you. The devs continuously hammered home that this was a core part of the game which couldn't be changed and would result in a lesser game. So was that a lie or is the PvE mode going to be a fundamentally worse game?
Each PvE only match is going to be a foot race to see who gets to the loot and extract first with zero risk; the bots pose so little danger that you could run around with an empty loadout and not worry about losing anything. Conversely, each PvP enabled lobby is going to be a deathmatch with no looting because you have nowhere else to use your weapon loadouts and you have the PvE mode for looting.
Looting with no risk gets super boring super fast; unless they provide some steep incentives for NOT queueing up in PvE only, this game is going to fall flat on its face.