Hi Soren and welcome to the forums!
Good question. I know it looks like there is one marker when there are two events at the same location in the same Map View, but there are actually multiple pins stacked on top of one another. So, where you see one, there could theoretically be an infinite number.
Unfortunately, I don’t have a workaround for this–but it would be great if you could add this to our feature request forum so we can check it out. I can see how that could get annoying and having a built-in enhancement would help.
Sorry I don’t have a concrete solution for you here, but does this at least help answer your question? Please let me know.
Cheers,
Geoff