User blog comment:DaNASCAT/Technical Update: May 9, 2016/@comment-4551144-20160509223538/@comment-5558012-20160510131228

Use a new name is a problem, especially when the video's title is already as descriptive as it needs to be or the video is used on many pages. Delete and reupload only works (properly) if you have the exact file name. I've replaced too many this way and it's easy to waste time renaming because of a minor naming mistake (such as a space in the wrong place or not deleting the original first, ending up with -0 files, when I use them for reference).

To me, at this rate, it seems it'll never be a priority and we'll waste time on this maintenance issue than other projects.