A strong vote from me to request sorting by file name as an option in the events view. One great usage case where it would be quite useful is when displaying unassigned faces. This page should definitely allow you to sort by filename, not just date.
The issue of sorting by date can spread out the same person over a great many dates, which makes assigning faces take much longer than it should. And I find it requires approx 20-30 assigned faces before Tonfotos facial recognition really starts to become accurate. Think about usage cases where the filenames have been renamed with the person’s name, and sorting by name ends up being a huge timesaver.
Or maybe another way of requesting this is, please allow the unassigned faces function to display in the folder view, not the events view, with the option to sort by filename.