"I don't think her job needs to be made any more complicated than it is already."

Exactly. It's an ambitious and worthwhile project she's undertaking, but I think she will need to keep it focussed on what she's really interested in to get through it. We can all take pot-shots at it after it's published!

And of course, come to think of it, the business of dialect is only one of a number of subjects she proposes to touch on, if I understand correctly.