Hackers will do always what it's supposed them to do : hacking stuff, exploring , exposing weaks, breaking barriers and rules .... it's their job, their philosophy, their way of life ...... so, they have, "theorically" , none fault, since, once they had access to the demo files, they did what was expected coming from them ......
It's more or less like throwing a T-Bone steak to a hungry dog and say : "You should not eat it !!" .... lol, can you stop people to do what naturally they will do, according their nature ? No
The fault is from NRS : they have tools, money and smart people to figure out these things, to protect their product and to promote what should be promoted, and to keep secrets hidden until the right hour ..... if they had planned a demo since the beggining, and worked on a demo version done separatelly from the final version, with only the basic necessary files to run the 4 characters, 2 stages and the video bonus ......
But, no .... instead, they picked a WIP version, with lots of content to be in the final version, and simple built into a limited demo gameplay, but, with all of essential information inside , and released that, in such naive and newbie way, that I am sure that in the day 1 after the demo release, hackers around the world started to copy the content for PC, and using decrypt tools to explore everything inside .... next, spreading around in the Internet like a disease virus , and bingo ! Just needed one considerable site source to have the information and next , everyone had access to see ....
And not being hypocrite, if leaks were not showed, OK, we would continue to speculate about what the next new about the game, but once something is leaked, yeah, lots of people want to see it, for curiosity purpose, or to confirm something ..... I saw all leaked information so far , and I don't regret it, because this will not stop me to want the game anyway, will not convice me to not buy the game .... on the contrary, all this leaks help me to understand NRS & Ed vision about this project, and how things are being put together and what we can expect coming from NRS, regarding this new MK ..... I am really excited to see all this leaked information working for real after 19th April, in my PS3, playing the game and seeing what we already know, being reality .....
And, c'mon, in the end, almost everyone will get bored with story mode, playing it for 2 or 3 times, and challenge tower as well, and so, will give focus for the main purpose and goal of the game : online matches, versus, and tag-team .... and for that online modes, doesn't matter if you know already everyone who are in the game, what matter it's how good you play with the characters , and work hard your rank online position .....