My 2 cents on this is that the decision for something to be considered a worldwide heritage cannot be taken in such haste. Time averages and moderates the opinion. Sure Wikipedia is a nice achievement. But its merits, benefits and importance would have to stand the test of time. Perhaps our future generations can take such a decision, but for Wikipedia to propose that right now, is 'overly pompous' as someone commented.

EDIT: Downvoted for this! It stands to reason that a true measure of greatness comes with time. This is the reason that the 'pontification' process has these checks of time. To let reason and proper debate hold sway over other considerations.