It is because of the friction created in atmosphere. The friction and pressure is not only in ozone but overall.
The ozone layer.
A spaceshit passing does not break ozone. It replenishes automatically unless altered chemically.
The ozone layer is not a single place or altitude. It is a rare gas in the upper layers of our atmosphere. When any object passes through the atmosphere, the gas it is traveling through moves around it. The gas returns to the normal mixture within a few minutes. Ozone is everywhere in the upper levels of our atmosphere and the passing of a rocket through the atmosphere has no noticeable affect on the levels of ozone. As long as sunlight and oxygen are in the atmosphere, we will have ozone.
The nations of the world protect the ozone layer by passing laws. Most of the nations have banned the CFC's.
The ozone layer is just a place in the atmosphere. So a person can fall through an ozone hole, or through the ozone layer itself.
The UV rays must pass through atmosphere. So the layer must be in Atmosphere. The layer of the atmosphere is he ozone layer.
Heat waves do not travel through the ozone layer. Some infrared radiation passes through it, but "far infrared" does not. Ozone is a greenhouse gas.
Jets fly through the stratosphere, which is the second layer of the Earth's atmosphere. The stratosphere contains the ozone layer, which helps to absorb and block harmful ultraviolet radiation from the sun.
The hole in ozone layer is actually the thinning of this layer. This hole allows the harmful UV rays to pass through.
The Sun emits a broad spectrum of light including UV-C and UV-B. When UV-C is absorbed by an oxygen molecule, sometimes ozone is formed. When UV-B or UV-C is absorbed by ozone it breaks apart, and sometimes ozone is formed again. So "burning through" ozone also produces some ozone. The amount of ozone at any given time is a delicate balance between incident sunlight, ozone left over from the previous day (ozone decays with time too), the amount of oxygen available, and the various decay paths presented by contaminants. As contaminants increase, or new decay pathways are presented, ozone concentration decreases. Not only will the sun not burn through the ozone layer, the sun is required to create new ozone. The thin layer we misrepresent as a hole is due primarily because the sun can not react with the atmosphere and the ozone naturally decays.
The ozone layer is just a layer of gas, so while the ozone might get "stirred up" a bit, it does not form a hole. An ozone hole is not a physical hole; it's only an area in the ozone layer where the ozone levels are very low because of decomposition by chemicals. Consider this: If you move your hand through the air, does it leave a vacuum behind? No. The air around it fills in the space almost instantly. Same thing with the spacecraft going through the ozone layer.
Thinning of ozone layer weakens the ozone layer. It allows the UV rays to enter through.