They would be extraordinarily dumb to set it up like RB1... but, the reason it is not ok is that the price of the export is not NEARLY sufficiently high enough to pay HMX for the amount of work they have done in charting those songs. DLC is $2 per track. If the export is $5, then HMX is seeing < $.09 per song. If the export is a free, one-time deal, then the person is getting them for free. In both cases, a person is getting an entire games worth of content for an absolute pittance that clearly screws HMX out of a LOT of money.
if it's set up like RB1 where you can pay a nominal fee and download the content from the internet, then I see no reason why people who are uninterested in RB:Lego should be blasted for renting the game, paying the fee, and downloading content from HMX.
So "stealing" from the company is supposed to send them a message to give you more DLC for the same game (at a higher price/song then just buying L:RB) and is supposed to get them to release track packs (which export too, and can therefore be ripped off the same way)? What exactly is the advantage for us or them.
If that sends the signal to HMX that RB:Lego is not a money maker, but people will pay for even more DLC/Track Packs, then that is a good thing, because that is what we want.