My DH commented on the number of non-white faces last night. We discussed if it was accurate or not.
I think that the BBC has a duty to be accurate when showing history. When televising books they also have a duty to be accurate to the book. Sometimes it matters and alters the story when people of different ethnicity are used to portray the characters and sometimes it doesn't.
I agree that Forster didn't intend Jackie to be non-White. In terms of the actual story line, the fact the BBC have chosen her to be non-White shouldn't make much difference, but it clearly is distracting people. The story is about class and that does come across, but for some people it may now seem to be about race too - so that will be a red herring and the BBC need to be mindful of that and not allow its multi-cultural aims to distort the actual story. Yes, it's fiction and not representing real events or people, but as a story about values it is easy to lose that.
As ever, art about historical periods tells us more about the people making the art and their values than those of the period being depicted. I do wonder if in 20 years when the next adaptation of this is made and people look back on this one, they will laugh at the BBCs attempts to insert non-White actors into roles which so clearly were not intended to be non-White in the book.......or by then will there be an all non-White cast, or will the Wilcos and Sclegel families also have become non-White?