Yeah, I think the main problem is that often Allears just updates the pricing information at Ohana and doesn't actually check/alter the menu part. I've found more than one of their 'recently updated' menus for various restaurants to be wrong in the past.
For example, let's say I'm an allears information provider and I submit an update letting them know that the price of the salmon at Restaurant A has gone from $24.95 to $27.50 and that it is now served with rice instead of pasta. They'll get on their page, scroll down to salmon, change the information on the salmon dish and change the 'last update' date for the page, and then go right on to something else. Never mind that there are other changes on the same restaurant's menu that I as information-gatherer missed, the update is done and new date is noted.