They don't expect the customer to do anything. You can do what you like.
The game is perfectly playable without any patches.
Im loving it at the moment.
And also ihb if you are using a packet of crisps analogy I would say to you, your reaction, when you buy a packet of crisps and it says on the packet something along the lines of "Great New Recipe" or "New Flavour". You should be asking why they have been selling a poorer quality flavour previously.
Why did they ever release the first pack, if in the future they could develop better flavours.