Science

It's the very first starting point. Benzene is far away from real drug molecules most of the time (some are quite simple though like paracetamol). I think the real challenge will be too extended this to three dimensions. Their technique involves trapping atoms on metal surfaces which will be hard pressed to simulate three dimensional structures.

I deeply appreciate your cautious optimism but we're living in the most advanced times ever. Breakthroughs do only imply the job was done but doesn't mean it's ready for wide spread use. It could have issues with certain elements and structures or have a wide range of error. Yet, the fact it's been done means there's a solid platform to work from moving forward.