I fully realize that prideful is coming out with SoO, it's not a satisfying answer though. In other words I could ask if SoO is scripted good enough to release at least part of it, like ToT was being released boss after boss. Let me remind you, that first SoO boss was scripted and released about 2 months ago and we haven't been informed about any SoO progress except for the fact, that "devs are working on SoO".
It still hasn't been said, that SoO is coming or not coming out next week, Warmane does surprise us sometimes.
Just think about it that way: if we don't get SoO now with prideful gear, we will have to wait 3 more months for it. First SoO boss was released 2 months ago. Maybe it's better to give us whatever there is and focus devs work on further releasing SoO, as people will be getting pvp gear slowly as well (27k conquest points is required for full gear, which is 9 weeks with 3k cap).
IMO it's much better to open SoO if they have 3-5 bosses scripted and keep improving it than keeping us on grevious for 3 months more. With attitude that prideful gear will be released with SoO is actually fully scripted we won't get it in 3 months either, but we will have to wait 6 months...