And, while I’m no fan of lip-synching, in the Musicals production number, I don’t think there was any way around it. With all the key changes, tempo changes, style changes, and starts and stops in that medley, it would be far too easy for any performer to screw it up. Remember, the Oscars telecast is not some Broadway show that gets rehearsed for months and months before they go into previews. In this case, the different elements practice on their own for a few weeks, and then come together pretty much at the last minute for a few run-throughs before having to perform the thing. And, unlike a stage show, they only get one shot at it.

Unfortunate? Yes. But not unreasonable.