Why does PC never get cool stuff like this, early access to DLC and such? 
I think many people are confused by the marketing term "early access." No one is getting early access to anything, ever.
The way it works is, the content in question is delayed by a day, a week, a month, whatever. The content is ready to be released, but the publisher sits on it, and then offers a console maker the opportunity to pay the publisher to release the already completed content. Early access is a load of bull--the reality is that anyone whose platform maker doesn't pay off the publisher is getting delayed access.
It's the same load of BS that broadband providers are trying to sell the USA in the current "net neutrality" debate. They argue that regular content won't be throttled down in transfer speed, it is simply that premium content will gain access to an internet fast lane. But if regular content wasn't throttled, it would move at speeds governed by the capacity of the network hardware and the other traffic on it at the time of transfer. No one is even pretending that an infrastructure of fatter pipe is going to be laid to support this "fast lane," so of course the only way to effect this plan is to throttle plebian content while allowing patrician content that buys off the broadband provider to operate without that limitation.
Recently the release date for DAI was pushed back about 6 weeks. While I'm sure that some of this additional time will be used for polishing the game and catching bugs, clearly the game will have to be finished and ready for release, including console certification and all that business, a week or two earlier than we might otherwise think, to give EA time to put an artificial delay on its release and then offer MicroSoft and Sony a chance to bribe EA for the opportunity for their customers to get around the delay.
The same thing is true of the "first story DLC" that will be a timed exclusive for the x-box. XB customers aren't getting the content early, it is the rest of us that are getting it late. That's how EA does business: you may pre-order the deluxe edition of their product at full price, but that won't keep EA from throwing up another gate on the content you've already bought just to try to sell some more tickets. In this case, MicroSoft bought the tickets (for x-box, not for PC) while Sony didn't. It might be that EA will provide tickets to Origin customers, but probably not.
That's why I find this so distasteful. I've already bought the game, but EA is blocking my access to it for a period of time just to try to shake me down for a few more dollars. If they are that desperate for money, I would much rather they just raise the price of the game by a dollar or two and release the game when it's bloody well ready, across all platforms without all this BS.