If there's one thing I learned working in IT it's that devs actively half-ass their error messages, routinely misspell critical words you're gonna grep for in logs, and never even consider having someone in Product read over customer-facing error messages like this. All they see is a Jira ticket that says "include the following verbiage in the VPN rejection message" that was typed up by a mostly plastered PM one afternoon after they downed 3 margaritas at "lunch" at the taqueria next to their office. And then they just copy and paste that shit into whatever bullshit HTML template took the least effort to find.