Ha ha ha. Actually I thought it was quite representative of RTD's work.
When I sit down to a story, I have to trust that the storyteller will deliver on his promises. He creates expectations by using a title like The Next Doctor or by creating a character that we think has significance (the cybershades, among others). Significance in a screenplay = important information for us to understand how the script moves to climax and through it to resolution. I know I sound like a textbook here, but it's actually quite a turnoff when the writer just discards all of that for a deus ex machina (the dalek whatsigmagig, the scream) to resolve a plot that then has no meaning or significance as a whole.
The theme could have been about facing yourself (as the Doctor believes he is doing at the beginning), or about revenge of the sexes, or about post-traumatic stress, but it's not. It's about the set pieces - the children ludicrously working in the cybermen's dungeon, the Doctor facing down a giant monster, or saving a helpless child, blah blah.
This turned into more of a rant than I thought it would. It must be all the holiday cheer. 😱