Reading Comprehension, you should look into it:
So I was told that Windows Phone copy and paste is not definitely, but that they were looking at adding this before RTM. It's not there now.
So basically, this means, not there now, they're thinking of adding it. This tells me that they didn't think it was a big deal, and after seeing all of the big effing deal people are making they are going, "oh shit! Say something to shut them up." So they throw out something non-comittal to get people to simmer down, and people like you buy it hook, line and sinker. Maybe they will add it before release, but the fact that it's not there to begin says a lot.