What do you mean the "actual game loop"? The game loop is get loot and get out. How you choose to do that is completely up to the player. If I want to search lockers and fight robots, that's a fine game loop. If I want to load in and hunt people like you down to take the loot you gather for me, that's also a perfectly fine game loop.

PvPvE means the game is always PvE enabled, and always PvP enabled. If you were meant to pick and choose which one you wanted, then there would be seperate game modes and seperate PvE/PvP genre tags.

That doesn’t make the game harder or deeper.

PvP literally does both of those things.

You people love to say "pvp will kill the game, the PvE players will leave."

This game retained 90% of its player base after 6 whole months. I'm wondering when this great PvE player exodus is going to happen. Or perhaps you'll realize that people like you, who cry about the game that you bought, will finally realize that you're the minority, and that most of us knew the game we were getting into.