The article makes it sound like the usual tendency of Wikipedia to revert new contributions was avoided but tellingly they point out not all of the changes "stuck".

The fact that a coordinated gathering of actual physicists working together on these pages had anything reverted is a telling example of the poison that will eventually kill Wikipedia.

Without a coordinated list to see just which edits failed to stick I'm not able to completely back my assertion. However I doubt that these people, working in groups where they have many eyes proofreading and spellchecking at once, were submitting the kind of changes with typos or other mistakes that would be understandably rejected by Wikipedia.