At face value, it appears that way only because of how we go about thinking on those lines.
The reality is there is no sucking, it's all push against the least resistance to that push.
And yet we're basically told to accept we went back to the Hillman Imp from the Audi, once again.
It depends on how someone sees what push or pull or suction means to them.
Explain how you think you can evacuate a bell jar of some of the atmosphere/gas/air within it.
We know you require a pump but what do you think the pump does?
Do you think the pump just sucks out the internal atmosphere and throws it into the external atmosphere or do you think the pump pushes against the external atmosphere which allows the internal atmosphere to decompress within itself to push out by its own expansion of matter inside?
It's all key in how we can easily be manipulated with a lot of stuff. Basically, two sides to every story, or maybe more depending on the story told.
This is why push and pull need to be evaluated in terms of understanding what's really going on with explanations as to whether we are told the truth or a mixture of truths and lies or basically lies by misinformation/disinformation.