Yeah, that article doesn't prove anything new to what many folks believed here (That that work that initially started on the SGX ended up going the ACD route). It says nothing about the SGX work being far enough in to make anyone warrant believing that the floating pics are that of the rumored SGX proto.
And again, it really doesn't matter now, does it? Even if a pretty good version of Strider showed up on the SGX, it likely wouldn't have been as good as the later releases (on PS, PS2, Xbox).