There is something there. Whether people use the wrong term or technique, saying that it was a green screen, or whether it was altered video, isn’t really the point.
The point is that the video was clearly altered in someway. I defy anybody to look at that screen capture shown above that I posted, and explain how that happens without editing.
So it may not be a green screen. But there was editing of some kind that is Undeniable.
The real questions are, who altered the video, and why did they alter the video?
It doesn’t disservice to people to say that there’s nothing wrong with that video that was shown, because they’re clearly is something wrong with it and the nature of what is wrong with it is not an inherent bug of the technology, pixelization, signal loss, etc.
There may be a valid and innocent explanation. People are entitled to get that explanation from The source of the video, and lacking that, are completely entitled speculate.
“Green screen” is the wrong term. A green screen is the colored screen that allows the “Keying” of the streams to be composited together. There doesn’t have to be a green screen. A “key” can be done on most any video, the green screen just makes if much easier and simpler since the green is what’s “keyed” on.
There was no green screen as seen from different angles, but that doesn’t explain the NEED to use keyed video footage of such an innocuous event, like this one. If they’ll do this (or if they feel they have to) on something so simple as this, then WHY? It’s not the green screen or lack of, but the keying is an indication of the desire to edit the video and evidence that it has been edited/doctored.