It's mostly marketing at this point. Even if their quantum computers work, at the scale they operate today everything they do will also be doable by simulating

It's mostly marketing at this point. Even if their quantum computers work, at the scale they operate today everything they do will also be doable by simulating a quantum computer on an average PC with some slowdown. It's just "now we can do it on a real quantum computer". They would have to rapidly increase the bit number to produce anything that's useful. That may very well happen in the future, but nobody knows for sure.