I think his point is that back in the day manufacturers were happy to provide the resources needed for users to repair their products (or delegate it to a third-party of their choosing).

This is not the case anymore. You are not going to find a manufacturer-approved source for schematics for most modern consumer products. The only way these schematics surface on the web is by being stolen and leaked by factory workers and this could take considerable time from the release of the product.

Manufacturers also try to corrupt the law to their advantage by lobbying against bills such as the right to repair with completely insane arguments (often involving safety, etc - the typical “think of the children” nonsense) which sadly work against clueless senators (or whatever the people at these hearings are called in the US). You can check out Louis Rossmann’s YouTube channel for recent examples of this.

The "if available" part is the problem. I'd be 100% fine with electronic delivery, if they were simply available.

Having to go to dodgy websites with my browser in paranoid mode just to find documentation to try to keep my gizmo out of the e-waste stream a little longer, is suboptimal.

Learning and fixing should not feel like a crime.

Have TVs become more complex? I recently peeked into mine, and it had only two major boards, one for power, the other for AV stuff. Not mine, but similar: https://i.imgur.com/1uHsfYI.jpg Hardly anything there, and very easy to replace a blown capacitor or a whole board.

Modern flat screens are actually far more simple than the TVs of yore; that actually makes them more difficult to repair. You will typically have a power supply (and if not an LED backlight, then a high voltage one as well) and a "T-Con" board, which usually has one honking big SoC on it which is both Vendor and TV specific. There isn't that much to repair aside from the power supply, and honestly you don't really need a schematic for that to repair it.