Actually, Data is also wrong - possibly!
A pressure due to incident wind (blowing) and a pressure difference across an object due to a sudden pressure gradient are two separate things!
The air pressure pushes on the hatch, the hatch exerts a pressure back on the gas, and the hatch-latch in turn pushes on the hatch.
When the hatch-latch stops holding, the hatch pressure drops to zero, and the air pressure accelerates the hatch.
Now there is a pressure gradient in the air. The air closest to the opening can not push back on the air farther inside. The air deeper in the ship pushes and accelerates the air closer to the opening.
"Blowing" usually refers to being pushed by a wind or velocity. You might have used pressure to create the wind, but "wind pressure" is not the same as a pressure gradient. For example, wind pressure depends on the mass density of the fluid and the velocity of the fluid. A pressure gradient is just about pressure.
The air "Pushes" itself out, it doesn't really get "Blown" out.
Same for the people. While there will be a force associated with the moving air blowing on them, there is a much much BIGGER force associated with the pressure gradient.
So I think that Data is also wrong. They were "Pushed" out by the sudden, transient pressure gradient.