Seeing as I can't stand what they did to the Silurians last year the similarity (which is two details deep) makes me prone to switch this iteration of the theme as the default one.
The one thing that is more irksome with this story is how Odoish the Ganger Doctor is.
Sure it's a similar idea (a living liquid taking on the shape of other people) and the other Gangers in mid shift look much less like Odo, I guess it must be Matt's bone structure under the latex.
Maybe this was deliberate, "Is that a Star Trek mask?" was prominently asked in the first episode.
It was weird to hear a Bad Wolf reference after all these years.