Okay, that's what I was suspecting. It'd be great if the real motivation for a patch was spelled out in the commit message :/ So some SoCs which run non-vanilla kernels require hacks to steal ports from the networking stack for use by proprietary firmware. I don't see how merging this patch benefits the community.
This is just a transparent proxy scenario though. We block the specific ports so that there is no unrelated traffic belonging to host proxied here incorrectly.
