Yeah, so what? Saying that isoflavones are phytoestrogens is just another gross mischaracterization of the issue by those who don't understand it. Unlike estrogen, isloflavones are tissue selective and can have estrogen-like effects in some tissue but either no effects or antiestrogenic effects in other tissues. There are a number of recent studies that clearly show how different isoflavones are from estrogen. Applying the term phytoestrogen to isoflavones is terribly misleading since it doesn't fully or accurately describe isoflavones.
All your link has shown us is that correlations can be indicative but in most cases they don't prove a thing.
Then keep mainlining soy.