I think people misunderstand what this DRM is about. The Pi has a special connector for a camera. Anyone can use this connector to build their own camera module

I think people misunderstand what this DRM is about. The Pi has a special connector for a camera. Anyone can use this connector to build their own camera module and they can use the kernel driver that the RPi foundation paid for. But you also need to develop an App for it. The RPi foundation made their own camera accessory and an accompanying app for it. What the DRM does is that it only allows their own accessory to work with the app. So it's more like brand protection than it's market control. There are plenty of other cameras on the market that you can buy. Why they chose the camera to DRM out of all the peripherals I don't know, but the only reasonable place that they can stick it into is the blob that Broadcomm provided. Btw the situation with the binary blob has been going for years and from what I've gathered in the past what's happening is that the foundation members signed an agreement to not reverse engineer anything on the SoC when they made the first Pi. Since then they offered a price for an open source gpu driver but didn't follow it up with more competions. So either Broadcomm shut them down or it paid off in internal pressure since Broadcomm paid and provided the mainline driver used in this version.