I would certainly not want to defend AI and AI-usage but I don't understand this remark. I mean I understand what it says, but I don't understand why it's mentioned at all:

The unauthorized AI enhancements represent a concerning trend where artificial intelligence increasingly mediates reality before it reaches viewers, potentially eroding authentic connections between creators and their audiences[^1].

There is no such thing as an 'authentic connection' or a non-mediated 'reality before it reaches viewers' if by 'authentic' the author means 'direct', unfiltered or unedited.

In a least two ways, a video is always edited, aka mediated:

• A video being scripted and or scenarized, even say just by the choice of lens and lighting used, or by the props visible in the frame. Not forgetting the sound (the way the voice is recorded/enhanced) and the music used to suggest/enhance some mood. And/or when the video is edited (selection of sequences to keep and other to discard). Which makes even the most basic videos, even a live stream, not an authentic (unmediated) connection.
• It's also not unmediated by the very way video works, like photo: the 'reality' mentioned and that is being recorded is just that: a record of it. And not even of it, a record of the image of it which is a recording of the photons that were hitting said reality and that were bounced back (first mediation) onto the camera's sensor (second mediation) that were then transformed by the camera into an electrical signal (third) that was stored as binary data (fourth) to be later on converted again into something the viewer (add as many as the ones already listed) at every single conversion there was an interpretation and a decisions were made (one of the reasons there can be so large image differences between various brands is that they don't use the same sensors and don't use the same algorithms to convert signal into data and vice versa). It's not just with digital, any recording, even a film one, or an old handmade painting or a sketch, is a a lot of mediation between a reality (that can sometimes be long gone and forgotten) and its viewer (us).

So, to me the issue should not be that this mediation was made using an AI-powered tool by Youtube to change the video. It should focus on the fact that YouTube violated the creator's copyright by deciding on their own to 'improve' said videos without the creator's consent.

A bit like we should not accept when anyone, no matter their reasoning and intentions, wants to edit an existing creation because they think it should be changed (say they don't like the dude's face, or their nose or even they disagree with what they say and want to change it). Unless they get explicit authorization to edit it, they should not have any right to do so.

Sorry for the lengthy comment, I find it odd when I read that a video is about 'authentic connection' between a supposed reality and us. It's not, with or without AI involved.