Although it is indeed a weird mix of going all the way of using a FOSS firmware with the goal to remove all non-FOSS proprietary software blobs on the boot-path

Although it is indeed a weird mix of going all the way of using a FOSS firmware with the goal to remove all non-FOSS proprietary software blobs on the boot-path and then include them anyways via Windows, but that is of course up to the consumer. The right to use your device anyway you wish, the ultimate expression of libre.