Map element - Conditional data source

I noticed that the default Bubble map element in my app does not allow me to set a data source in the conditional tab. As this map element is currently using the most WU’s in my app, I was looking for the option to load the data source only when the map is visible. I found out that I can use the action ‘Display markers on a map’ in a ‘Do when a condition is true’ event. However, I find it strange that there is no such conditional possibility. Does anyone have an idea why this is the case?