That doesn't mean that the current series should repeat the original series's mistakes. DW TOS often had rather unemotional writing, too -- that doesn't mean Moffat should abandon emotionalism when he takes over as showrunner.
I'm not sure that
Doctor Who needs to be a tear-jerker.
For instance, I find the novel
Human Nature to be far more moving than the two-part episode. The ending of the novel is gutwrenching, with the Doctor sobbing over what he's lost, while the ending of the episode, because it has the
Return of the King problem, drags out too long, losing the emotional energy.
My issue isn't that
Doctor Who shouldn't go for its emotional marks, but that when it does it can fall flat. In some cases, it's the writing (such as "Journey's End"); in other cases, Murray Gold's score lets down the side (such as "Last of the Time Lords"). When everything
clicks, like "The Girl in the Fireplace," though, it's magic.