Yes but surely you’re aware that even the most new-user-friendly distros and their tools aren’t necessarily aimed at new users.
That warning is a perfect example of how Linux developers choose which hill to die on. They post a warning for an app that everyone knows can deliver bad times to two camps of users; those that know and don’t care and those that don’t understand the warning. If we could quantify the helpfulness of that warning, odds are that it saved 0 users from malicious action from that avenue of attack.
Never expect Linux as a whole to be “helpful” to the new crowd.