Oddly enough, giving the general public exact error messages ends up costing you in support and reputation.

They obscure the messages because the inexperienced masses start digging up red herrings. Knowledge to someone with zero experience causes a lot of confusion.

The experienced and capable users look up the codes and think about it for a minute, check their vpn, maybe a health dashboard, maybe reboot.

Just about every complex machine out there give error codes instad of real messages, even when they have large displays capable of telling you exactly what the condition is.