I have seen a segregated BF/FF parents room like that in Scotland. I was really shocked at first but my pal said it was because a lot of BFing mums are nervous about feeding in public, especially if they have a very new baby, so in the BFing only area they feel more comfortable to feed because everyone is in the same posistion. I did like it more than the parents rooms in some malls here where the feeding area is a small cubicle with a curtain round it for privacy. At least in the segregated area I didn't feel like I was in a box

But overall I prefer a nice big feeding room where all parents can mingle regardless of how they are feeding their bubs. But then I am not nervous about feeding in public.
I think you have a valid point there but I think like you said at the end that it should be a everyone welcome area and not segregated. Maybe if it wasnt taboo in a PARENTS ROOM to breastfeed infront of those who dont then who knows; those mothers may go on to feel more comfortable with the idea of themselves, or others, breastfeeding.

I can remember breastfeeding DS3 at Taronga Zoo when he was nearly 10mths old on a park bench right at the giraffe pen. Some people gave me death stares and Dh loudly exclaimed that it was quite funny people were cooing over the baby giraffe BREASTFEEDING but giving dirties to a human being doing it. Its ridiculous.