I think this is a lot of fluff supported by a weak anecdote.

Chris' company's assumptions are no longer true, but that doesn't apply to everyone's startup. This is mostly a Chris problem.

No, not every product can just be a chat window like in the silly little screenshot.

If the author actually wrote software they'd realize that, no, AI isn't speeding up development by any more than a modest amount. It's great that we have it and it's removing tedium but it has replaced zero engineers at my company or at any other company of anyone else I know.

And no, your company laying off some people isn't because of AI, your startup idea not getting funding is not because of AI, it's because we've been in a regular old recession which is now a developing oil crisis. Interest rates aren't 0% so nobody wants to lend money to infinite startups.