to pixel outsiders, this is more like “pixels are now like the rest of lineageos device trees”, you’ll get GPL kernel sources and have to reconstruct the rest yourselves. Seems to work for most, just 1. isn’t convenient and 2. makes it harder to ship device security fixes very quickly
Edit: that said, this is malicious compliance (the AA article). I guess they target security researchers, not wanting to make their work easier (as with doing device-tree inhouse too):
Furthermore, Google’s decision to squash the kernel source code’s commit history also hinders custom development