.. would it be mean to call it the world's most accurate barge missile?
Not really... after all even the chinese managed to turn one of their ICBMs into an intercontinental anti-ship missile, that should be able to hit an aircraft carrier without significantly slowing down...
That they managed to get close to the barge is a good achievement, but regarding the outcome, it would have been wiser to intentionally miss it and divert to a safe disposal area, than to push for a landing at all costs.
That they still failed to get good video data of the landing attempt is also no success at all.
It was a nice first try. It likely didn't cost SpaceX more than a few ten thousands of dollar for having to fix some superstructure parts of the barge, the stage wasn't expected to be of much (re-)use anyway. The lack of a few tons of possible payload on the launch wasn't a problem anyway, NASA will still pay well.
But I think the next landing should at least have much more engineering value. No problem if it intentionally misses the barge because it is still out of control on decision height or the engine is not restarting well. Its still much better to control the crash than to crash uncontrolled, especially as achievement for future operations. But primary goal should be getting all possible data of the flight and landing extracted, so even if it crashes, the next attempt will be improved on solid information and not post-mortem guess work on possibly interrupted telemetry streams or wreckage.