I can see why they may not want to support such a niche feature but on the other hand I can't help feeling the hostility of this move.
It's surprisingly difficult to add a new YouTube feed to an RSS reader when it returns a 404 or 500 for most of the day. NetNewsWire just refuses to add it, for example. I would appreciate some kind of 'trust me bro' override, but it's sad that such a thing should even be necessary.
An easier solution might be to just run a local RSS mirror, to catch the YouTube feed in the sporadic windows when it does work. Easier still might be just to stop my remaining vestigial use of YouTube.