I suspect that the argument that gaming consoles made was that it is necessary for them to be able to restrict access to repair because failing to do so would make them unable to enforce intellectual property and copy protection on their equipment as required by licenses that they have from publishers.

"This game can only be played in Japan because of {content/licensing}". Enabling full repairs would mean that someone could more easily modify their device to present itself as a Japanese version and now the company and maker is liable for content that is allowed in Japan but illegal elsewhere.

Again, this is an "I suspect" - I don't know for sure what argument they're making - just trying to channel the mind of the corporate lawyers (which isn't an entirely pleasant way to be thinking).