There was a guest post about it last week.
The phrase being female she is probably being pragmatic grates on me somewhat - there aren't characteristics that women possess and men don't, that's sort of the point.
They have noted that UKIP got their first representatives not in general elections but in by-elections triggered by defecting MPs. So a presence is not impossible before 2020, albeit unlikely.
I agree, the timing a week before the election is slightly odd, unless it was aimed to interest voters at a time when politics is on their mind.