This one almost seemed good, coming right after "Kill the moon", but it was still very poor.
You nail it with the monsters. I find "mindless" monsters boring. Zombies don't appeal to me for the same reason, nor do "swarmlike" aliens (starship troopers) ect.
It would be nice to have a threat that is actually intelligent, scheming and smart for once - while proving to be an legitimate danger. The audio-dramas have done this really well with the Eminence lately (Whom I am really loving).
That said, I found the RTD era villains to be too comical and cheesy (the master, slitheen, racnoss, the list goes on) while the Moffat ones as you say, are mindless automatons. Why is it BF can do this stuff so well and the TV writers cannot whatsoever?
Next weeks looks promising though, it looks like extra-dimensional aliens that are curious about "our" reality. Hopefully it will be dealt with seriously. Extra-dimensional stuff is kind of "my thing" and what I do myself, so I am worried they will screw it up.