We are trying to create a Hit Level container to segment traffic based on Page URL.
We had a question, as to whether creating a Hit Level segment with Page URL (captured in evar1) as a condition would work effectively when filtering an event where the Page URL is not captured in evar while firing event tracking server call.
If you are trying to get the total number of submits happened on a specific URL, where event is being captured, but page URL is not captured, just get the event summary number in the workspace. I don't see a need of segment here.
However, if the requirement is different, please share more details.