Cybermen have always been crap, barely surviving their encounters with the Doctor, defeated again and again. Survival has always been the Cybermen's recurring theme.
Also: a base under siege scenario. I'd say it was an intentional homage to the second Doctor, and even if it wasn't, I'll just pretend it is.
The kids, though, were completely useless, which is a pity because I was actually looking forward to seeing them.