I don't disagree with you, I have tons of things that have public interfaces (as mundane as a fully patched wordpress where the wp-admin login is accessible to external blog writers), we get tens of thousands of random shit anything per day. But the problem here is that Tesla is treating NTP pool operators like they are their internal infrastructure. Also because the attribution of the 'attacks' is fairly well known.

I don't go complaining on the internet about the absolute shitflood of compromised routers on broadband ISPs in Indonesia probing my stuff 24x7x365 because I know it would be futile. But if I found one specific american company that was repeatedly probing my stuff all the time? Maybe I'd escalate it.