I think you may have misunderstood what an "annotated presentation" is.
It's not a new way of giving presentations. It's a way of publishing your presentations after you have given them where you turn the slides into a longer form written piece.
So it can't be "not a good way to do a presentation at all", because I give presentations exactly the same as everyone else does! Slides with images and a few words.
What's different is that I take the time to write them up properly afterwards.
https://idlewords.com/talks/