I don't understand why this is so shocking to you. This is how it should be, and how it has been on the PC for ages, up until recently. Only idiots pay for maps. I remember that expansions for $30 were annihilated because they did not add anything special, yet they added FAR more content than you can get with 3 DLCs worth $10 each.
To answer your question more directly, this is a return to the norm that clueless people ruined in the first place.
As to why, because I think DICE realized that they will get a lot more legit PC support if they did things the PC way not the console way, that is maps that aren't paid for. On that note, the other choice they had was make console owners pay up, or have them bitch because they suddenly have to pay for something others get for free.
Tag(thx fkusumot) - "Yet again I completely fail to see your point..."
HD vs Wii, PC vs HD: http://www.vgchartz.com/forum/thread.php?id=93374
Why Regenerating Health is a crap game mechanic: http://gamrconnect.vgchartz.com/post.php?id=3986420
gamrReview's broken review scores: http://gamrconnect.vgchartz.com/post.php?id=4170835
