Indeed. But if you transmit over TCP/IP, maybe SSL, probably over reliable links (github<->cloudflare<->server), seeing corruption is unlikely. And if unxz fail

Indeed. But if you transmit over TCP/IP, maybe SSL, probably over reliable links (github<->cloudflare<->server), seeing corruption is unlikely. And if unxz fails, in your case, you can just re-transmit. So using xz may work well for you and using it is not a big deal, but that does not make the format reliable for long term archival and as a sibling wrote, you probably could use lzip instead for the same benefits (and actually saving a few bytes because there are no extraneous headers) but none of the problems discussed in the article.