There's a difference. If someone manually claims a video through YT's content-ID system, they have to provide timestamps (this is enforced by Google).
If someone just sends a regular DMCA notice, they're only required (by law) to provide the URL, and Google has no choice but to take down everything at that URL, until/unless they receive a counter-claim from the poster.
The content-ID stuff is a convenience outside the law, if content owners (who have access to it) choose to use it. Anyone can file a DMCA notice, and Google has to respond in a particular way in order to be compliant with the law, and cannot impose extra requirements (like timestamps) before acting on the DMCA claim.
To quibble a bit, the video shows that YouTube's control panel tells users that a claim was "manual" and doesn't detail what "manual" means, or provide the DMCA notice (which is a written document, fwiw) that was filed, if one was.
I barely trust the information in the logging functions that I write, and those don't have legal consequences attached to providing extra detail.
If someone just sends a regular DMCA notice, they're only required (by law) to provide the URL, and Google has no choice but to take down everything at that URL, until/unless they receive a counter-claim from the poster.
The content-ID stuff is a convenience outside the law, if content owners (who have access to it) choose to use it. Anyone can file a DMCA notice, and Google has to respond in a particular way in order to be compliant with the law, and cannot impose extra requirements (like timestamps) before acting on the DMCA claim.