Subnautica 2 is a co-op game. How they treated respawns in Subnautica 1, where the screen goes black and you pop back into existence back at base agreeing with the game to pretend that didn't happen, isn't going to work here. So they need to acknowledge why you're able to get trampled to death by deep sea wildebeests and then keep playing with your friends. Kind of like why in Portal 2 the co-op characters are Atlas and P-Body. Easier to explain why they can get crushed and then keep playing than Chell and Mel.

So is NoA the respawn bot? Does he/it swoop in and collect our hoofprinted corpse to reanimate, hence why he asks us to find a "convenient" way to die? So it's easy for him to retrieve your pieces?

Is "You're going to die here, and that's okay" That whole line about forgetting everything and just exploring at first feels kind of defeated but she's trying to talk you into being at peace with it? But if you have a resurrection machine...

I'm going to speculate that we're the second to arrive, the first were the two women we hear. We're going to follow their trail of audio log breadcrumbs, at first listening in on them getting settled in and "learning how to survive" but then when all is lost they'll start addressing the players they know are coming to educate/warn us. I think the French accented woman is still clinging to hope that whatever mission can be completed, I think American accented woman has given up and is just embracing existing on this world, and is likely the one who biomods too close to the sun and wants to "go to the tree."

Edit:

They released a series of audio teasers about a character that books passage aboard a "Pioneer" ship off to colonize a desert world that goes missing. The last one is a mayday from that ship saying "unscheduled phase gate jump, position unknown, crashing into the moon's atmosphere. 40,000 souls on board." Anyone here read the Battletech novel Far Country?

Alterra knew exactly where the Aurora was, she was on her planned sidequest to sniff around the 4546 system looking for the Torgals and had received the Captain's mayday. And still they weren't able to rescue Riley. The Cicada is lost. Neither the crew nor Alterra knows where they are, so...yeah "Forget Alterra, the life you planned on is all gone now" makes sense.