Well I can't say for all though, but someone who is elite in the crypto space and understands how important their keys are, they won't be so stupid in sharing it to an email no matter where it's coming from.. the phishing scheme is becoming something else especially with emails.. fact is a good number of people still falls victims to this and the best way to prevent this from happening is to let them know that such things actually exist. I'm happy that trezor shared this as well..it shows how reputable they are and would be in the future....
It shouldn't surprise you that not everyone old in crypto space is really aware of phishing mails aside from newbies, Though the scammers, they're not mainly targeting crypto OG's, They're most targeted is the newbies and that's why the scammers responsible for sending out this Phishing mails are not relentless in doing what they're doing, this information is very useful to newbies in the space and also existing crypto enthusiasts that doesn't know what phishing is all about.
That's right...
Even those who are considered to be OGs in the crypto space are still vulnerable and can be swindled if they're lose their guard, and that's why matters that concerns security and safety of crypto is a matter of concern to every single person in the crypto space.
One thing about scammers is that, they're constantly updating their schemes and that's why it's also crucial for crypto users to also constantly furnish and update their knowledge, I know it's not always possible to be ahead of scammers but being updated gives us a fighting chance to avoid them and protect ourselves.