Error message consistency/(-ies)

Dear KNIMErs,

In my quest for perfection of the "soft factors" of IT I couldn't help but notice the follwoing inconsistency:

ERROR     k-Means     Execute failed: Missing Values not (yet) allowed in k-Means.
ERROR     Distance Matrix Calculate     Execute failed: java.lang.IllegalArgumentException: Cell in row "Row10610" is missing.

To my mind: k-Means talks nice and user-friendly, while Distance Matrix uses ugly IT gibberish. ;-)

This anecdote may just be the tip of the famous iceberg, though. I'm obviously too busy working on my precious data to thoroughly analyse this tool glitch. :-P