Purpose of hole in stove leading to oven I'm staying in a hotel and have access to a "electric coil stove" for one of the first times.

I accidentally turned on the oven light and saw that the light was shining up through only one of the stoves:



There's only a port from the oven into the top right stove, and note that the stove is not on.

Here's a view from within the oven:



Is there a hole here as a vent for the oven for some reason, or is this for the stove? I typically use a glass "flat-top stove" that doesn't have an oven underneath it. I've never seen a direct hole from a stove to the oven before, and have to wonder what the purpose is.
A simple Google search yielded the following 

https://www.shopyourway.com/m/questions/1019973

All ovens are vented one way or another. You would not want to heat up the air in a sealed chamber because of thermal expansion. It would explode due to the heat expanding because it has no way to vent. A vent is also needed to vent fumes and by products that burn off during the self cleaning process. 

A vent is necessary and should not be blocked