For starters, virtually every KS project was offering their games via-Steam. They clearly felt it was worthwhile doing so.
Ok, so that proves that they want to distribute through Steam. Does nothing to show that Valve is giving them 90 free days.
And Valve doesn't release its developer/publisher terms to the public and doesn't comment on their business practices
Sure they do, you can find info on their business practises on the Steam website.
If you're trying to convince me that EA isn't a shitty company then you're doing a very bad job.
Thanks for proving my point so elequently. I haven't been trying to convince you of any such thing. You're looking at this as a black-and-white scenario, when it's clearly not. It's possible for EA to be a shitty company, and still do some things that are good. Rather than looking at this as some sort of nefarious plot on EA's part, why not just agree that occasionally EA can do something decent? That doesn't mean all the stuff they've done that sucks doesn't still suck, because it does.