No, that wouldn't be hard to code. And if you had enough respect for the people you were addressing, you would have read his DIRECT RESPONSE TO THIS EXACT IDEA. You're more than welcome to post your opinions here, but I'd recommend not being so rude as to ignore the dev who took time out of his day to address you. When you fail to actually read what he wrote, you're wasting his time and all of ours.
Edit: In fact, survivors like that were already in the game at one point, but were removed to be reworked. What you're suggesting would be actually going backwards.
Your OP insinuated that you were disappointed that other features were being worked on when NPCs still aren't done. Your second post (especially before the edit) was just rude, condescending and unneeded (in my opinion).
And they've already stated the reasons they don't want to add half complete NPCs to the game and they have the right to make that decision.
People not understanding the development process and who works on what is why we're in this mess to begin with. As those same people will come and accuse other features of being the reason they don't have NPCs when in fact they're being worked on by completely different people. You're posts have simply added to this load and I think this response is directed towards more than just you.
Simply put, please try to realize where the devs are coming from before posting possibly hurtful/aggressive things. Let's all try to be lovely and understanding if we can
His pineapples were rolling with a mamma dog attack helicopter. Then suddenly, a wild squirrel army and a squirrel commander demanded nuts. He only waited five squirrel seconds before he politely obliged. Before they ripped his pineapples away, they exploded, causing a squirrel massacre, while screaming, causing cancer, and destroying Sauron himself which caused the Apocalypse, leading to legitimate heterophobia. In the next nightmare of Bernie, the sky felt the need to defecate furiously. All umbrellas were utterly useless. The Sun then squealed and a Rainbow covered placenta tree grew trans lesbians.