Thought I'd provide an update.
I bought some of the thin superglue as used in the video, prized apart the cracks, glued them, and very firmly taped and clamped them.
A few days later I gave it a sand, oil and polish, and this is what it looked like before fitting a scuff sheet.
After facing less than 150 balls in the nets, it was obvious that it was falling apart under the scuff.
When I removed it, this was the result.
You can see some of the marks where the latest superglue job was done, and it hasn't failed there, but in all new spots.
As I mentioned in another post, it's a 'weakest link' scenario, where the playing area seems full of weak links.
So if you have delamination that looks like this, my suggestion is to not waste too much time and effort fixing it up
Interesting that if anything, there is more damage in the sapwood part of the bat than the heartwood part.
I guess most of us prefer sapwood, but in this case the durbility of the heartwood doesn't appear to be any worse.