Re: Nice article, Ms. Quatch!
"Well certainly not in Doctor Who, where prior to the new series the subject of romantic or sexual relationships was strictly off-limits,"
So the OP is correct - this was basically never before mentioned in Doctor Who.
"characters like Bill Potter are simply redressing the balance"
No because as your own statement makes clear, there was never a balance to redress in Doctor Who. This seems to clearly be a case of pushing an offensive gay leftwing agenda where it doesn't belong.