Agree. All winds should be three digits.  Always.
Short, embarrassing story: The Garmin G1000 omits the leading zero as well. I was flying with an ATP friend in the right seat and he pulled up a field METAR on the G1000. We both saw the two-digit wind number and somehow mentally added a zero at the end.  Kind of like taking it as a runway number.  We landed uneventfully with a moderate tailwind.  Used lots of runway though.
Pilot error?  Of course.  But I also consider it to be a UI fault.