nostr:npub14ygxua0hfmvgtrjnrwvcuf9epdkzmlmeje7q6ppt02lehtmdsphsnyfu5r 

Not sure if the license is the biggest problem, as quite a few bits for BPF progras are GPL exported as well: https://docs.kernel.org/bpf/bpf_licensing.html#using-bpf-programs-in-the-linux-kernel

I worry more about "we can work around a oddity or missing feature in the Linux kernel's C code using a BPF program, so why should we invest time and money to improve the C code?"