I suspect that Lacey just "pulled out" to save face. I doubt Seattle would have asked her back this season anyway given that:
a) They already signed a better combo guard (Erin Phillips), which effectively left Lacey without a spot anyway, and
b) last season she went 4/35 from the field (including 3/27 from 3PT). Not exactly "we must have her back!" material.
A couple of WNBL seasons will do her some good I think. A bit of maturing and hard work and she might be in a good position to have another crack at the WNBA for the 2013 season.
No way in hell she plays for the Opals in London either, unless we have a catastrophic series of guard injuries.
The 2014 Worlds is where she should be setting her sights IMO.
Bishop on the other hand ... that is disappointing (from a Seattle POV (who I am a fan of), and IMO from an Opals POV also).
With both Abrosimova & Vesela not returning to Seattle (so that they can help their countries qualify for London - something that is a mere formality for Australia), there are significant minutes for the taking, shots to be attempted and rebounds to be grabbed in Key Arena this season.
Abby obviously places a high priority on grabbing an Opals spot if she is willing to cave in to Graf's requests like this. While I admire her dedication to getting an Olympic gig, personally I think her best bet would have been to return to Seattle this season and continue her development, and then attack the WNBL and an Opals spot from the latter part of the year.
Not that she can't work on her game down here, but at this stage of her career I think she needs to test herself against better opposition.