Our plan with the Encrypted Datacubes was simply to see if packs would be another avenue of getting story content in the game. It will always be the Cartel Market teams goal to look for new and interesting things to add into the Cartel Market which are not gameplay impacting (avoiding pay-to-win, etc.). With that being said, we have heard your feedback loud and clear on this and we have no plans to place the Datacubes in the Cartel Market in the future.
Testing the waters to see if people would buy more packs for story content is pretty shady practices. The amount of money that you're making for what you're currently selling in the CM isn't enough? You do realize this is what people have feared the game would turn into, right? Being nickle and dimed at every corner for content that should be in the game for free.
If the Development team would've put up a poll "Would you pay cartel coins for inconsequential story content (though it is connected to a current story line as a prelude of sorts) in the cartel market?" The response would've been a resounding Go to hell.