It's easy to say "they can figure it out". Sure, in a restful state. But the people we're asking to take action already have a lot on their plate. Using plain, conversational language whenever possible with exceedingly clear steps means less mental exertion on the receiver. And since we need their help, anything we can do to make it easier on their end helps us.
For someone who was born speaking English and spoke it their entire lives, the example provided couldn’t possibly be more to the point in my opinion.
Though I agree overall with the general idea and that yes there are some pretty baffling and downright awfully written error messages and log entries that take a minute to grok (I just don’t think the example replied to is one of them).
Error in file foo/bar.c, line 32, missing semicolon.