Having a similar conundrum here - because the only good 'on the fly' way to DIT and name stuff through Atem Mini ISO workflow is the single "filename" field in the Atem software, we just shot a whole week with of hundreds of now 'projects' that need to be somehow, tediously, merged together.
It would be helpful if in Resolve a drp could just be added into the existing, open project when imported. Similar to an XML being spit out.. for other high end switcher record systems that actually interface with Atems over network and record edits. When importing xml you don't a new project created every single import, it's basically just the timeline and related media.
2nd option, maybe the Atem software should have an option to just 'add to project' when recording with a new filename. Have ONE overall project name or maybe an additional field to fill that info in which makes the root folder, and then you can record as many files onto it as you desire. I.E. our day's project is "5-13 Comedy Night" and every record we do for different shows through the night, simple fall into that project even when filename is different. They create a new timeline within single .DRP that gets updated each record.
As for the way the timeline is built: I do NOT agree with the stacked timeline on tracks. The way higher end systems work is they actually build out a traditional, universal multicam sequence. In order words, all cameras angles are synced, made into a multicam sequence, and the mutlicam sequence is pre-cut up according to how the TD switched is. So you can double click it, opening up your angles, and use keyboard shortcuts to quickly change out the angle at any given cut, etc. I am surprised Atem Mini/Resolve workflow did not integrate this and just went all in on the Cut page 'sync bin' thing. I get trying to push that and as a super quick and dirty option for consumer type applications, but shouldn't Sync Bin and the Multicam function on Edit page be one in the same?
Just some thoughts through practical use and workflow.
Cheers -w