I'm amazed at the witch hunting going on in here. First, the download is 20GB and not 50GB, which is comparable to many modern games. Yes, it is stupid that Origin displays the uncompressed size in the downloader, but that's on Origin. It would be a nice feature to selectively download languages, but it's not such a huge, natural, expected thing that Respawn should be fucked over it.
They made a choice between running on Core 2 Duos and taking 50GB hard drive space. You may be a conspiracy theorist about it not requiring processing power to handle the audio, but if you play Titanfall (and I do on motherboard sound) you will know that there are hundreds of samples playing at the same time, all being manipulated in real-time based on their position, whether they are going through buildings or other materials, and so on. Some of it is for flavor, some is useful audio cues in-game.
So there were two options: they could require 50GB (a small amount in 2014 terms) or an i3 processor. For the person missing the former, it's a ~$100 upgrade to their machine to be able to play Titanfall. For the person missing the latter, they need a new mobo and CPU - $200+. Furthermore, there are a lot more people using old Core 2 Duo machines than there are who have both discrete graphics and a <256GB SDD as their only drive.