Usability problem: Permission Denied pages are marked as Fatal Error

Anytime an end user hits a civi page that they do not have permission to access, such as event registration, the page says:

"Sorry. A non-recoverable error has occurred.
You do not have permission to view this event"

(and the accompanying css is yellow and red). This looks somewhat scary and upsetting to end users.
Whereas if the template for the permission denied pages simply said:

"You do not have permission to view this event.
Login or return to home page." (with links)

This would be a much better and more effective message from a usability standpoint. See attached screenshots.