Agreed. However, it's not as easy as just delivering the raw error that we get, as that can potentially be a security risk as it may give out server configuration details.
So our job is to parse common errors and turn them into meaningful messages. That hadn't been done for the error above, so you just got the generic "we haven't planned for this one, so we'll log it" message. I think we need to do a better job at this.
Paul