Artificial wombs don't reduce the period of bring a child to be be a functioning social being (currently 18 - 28 years). Nor the costs or other incentives or disincentives.
To me, the most likely consequence is to reduce the total fertility rate to one child per woman.
This is far from even hinting at an artificial womb. It is at best a replacement for an infant ventilator and incubator. In the best case, it will improve survival rates for fetuses that even today sometimes survive.
But the first 20 or so weeks, from conception up to viability, are an entirely different prospect and we have no idea how we could replicate them yet.
I believe this particular piece is like claiming that the ancient Egyptians being happy that they are closer to building space rockets, now that they understand how to build an aerodynamic tip for an arrow. It is a piece of the puzzle, but it is very far from the part that is extremely hard to do.
To me, the most likely consequence is to reduce the total fertility rate to one child per woman.