Usually I'm all for food analogies, but this is a bad one.
You would still have to take a chance when "eating for the 8th time" because you won't know how the dish turned out until it's on your table.
In an MMO's case you can directly observe what has been fixed before you jump back in.
If the restaurant gave me a rundown on how they've changed the recipe since the last time or cleaned up the kitchen or whatever: Yeah sure, I'll be back.
The whole point of that was, you wouldn't go back the 3rd, 4th, 5th, 6th, 7th or 8th time. If they were horrible the first few visits, they are going to be horrible the next few visits. After that, I am not even going to think twice about looking back. I can get better food & service elsewhere.