Sir Terrence is absolutely right. Doctor Who, at least under Russell T. Davies, pretty much did everything he could to downplay as many of the scientific aspects of it as possible.
For instance, for a show ostensibly about a time traveller, very few of his plots ever actually involved time travel as an integral element; time travel was just an excuse to set up a new location and scenario every week.
Also, the use of Deus Ex Machina was getting utterly ludicrous. Take, for instance, the way Davros' Daleks are defeated in "Journey's End": the fake half-human Doctor (a ludicrous creation in itself) flipped a few switches, and all the Daleks exploded. It just made no sense at all.
Most of his plots similarly fall apart under closer examination. Consider the magic gizmo that made the Cyberking disappear in the episode "The Next Doctor". Apparently it was stolen from the Daleks in the Void, and used to escape. Again, incredibly nonsensical; why didn't the Daleks use it to escape themselves? How could the Cybermen, who got whupped by the Daleks in the episode "Doomsday" manage to steal such a thing?
Hell, Steven Moffat even used "Flesh and Stone" to repair the continuity of "The Next Doctor" by using his cracks in time to explain why the existence of the Cyberking wasn't part of the historical record. This is the sort of important detail that was utterly glossed over in the RTD era.
Never mind that the way the Doctor and Rose were seperated was lifted directly from Phillip Pullman's "His Dark Materials", and RTD couldn't even steal properly; the whole poignancy of the moment in "His Dark Materials" is that for the good of all creation, the protagonists must seperate, and never see each other again. That was fatally undermined by just bringing Rose straight back.
Terry's right, examined critically, the craft of storytelling has been really badly mistreated on Doctor Who recently.