My general (unfounded) suspicion is that mob damage tables are mostly correct, but there is some sort of mitigation/damage reduction occurring that has yet to be explained. The only way the tiger could do regular damage to a higher armour Tips and 1-3 damage to joana is if there is some mitigation occurring for joana and not tips, or if they are on different shards/layers and for some reason the stats are different between the layers (extremely unlikely/impossible), or the tiger in the joana clip just happens to be born with a disability. But I should probably leave the baseless conjecture to the experts.
I wonder if they’ll execute this similar to Jagex does OSRS. Let the players vote and once all phases cleared and of articles have been introduced, vote new WoW Classic articles to be inserted. There are a couple large ones that I think should be changed, like warrior taunts being able to miss and certain classes only being plain unplayable. Changes could correct a number of the issues that are bigger, and eventually the player base will quit seeing these things and just become irritated and need them to be fixed. Give everyone a couple of buy classic wow gold months of nostalgia that is pure , then resolve a number of these things.