If I remember my FLGS owner has a contact at FFG that mentioned something to the effect that a different company, possibly Electronic Arts but that could be way off base, had an exclusivity clause for producing digital media. I believe it goes back to the X-Wing games? Suffice it to say that online PDF sales weren't really a consideration at the time, but given the changes in information sharing... I'm not certain disney will even actively DO anything with the LFL companies, they aren't exactly broke, so why "fix" them.
I personally would love an electronic copy of the rules. I've already purchased 2 copies of the core book, and am loathe to shell out another $40-$60 (american).
Indeed, Electronic Arts currently owns the licence for electronic games, which generally covers computer games, but also technically covers paid-for digital copies of RPGs, hence why WotC were never allowed, and that doesn't seem to have changed, as it would require a renegotiation with EA, and why would they willingly give up a right unless they got something in return? Even if they don't make paid-for PDFs, it's one more thing they could do if they wanted.