I just saw this on Twitter. Very interesting...
They likely sent a letter, but if it’s a registered letter...some guy in the post department would have signed, and then looked at the addressing if confusing to figure out who should get it.
My humble guess is that he noted some secretary up in the legal area....she’s in retirement mode, and it just got filed, rather than read by any lawyer. Stuff like this happens all the time in big organizations, with confused department headings.
Gee everything is a bombshell. Bombshell here, bombshell there, everywhere a bombshell. They all seem to end up as little toot farts!