Plus it helped fill in the plot hole about 'seeing the alien ship'.
Although they did get Zoe's outfit wrong.
And the TARDIS circuits that the Doctor gives to Tobias Vaughn were different too.
Although, the thing about Zoe's outfit kinda makes sense if you only used the surviving episodes of "The Invasion" for continuity and neglected to check what she was wearing at the end of "The Mind Robber." It doesn't help that no one ever mentions in dialogue that Zoe has changed outfits while in Isobel's apartment. (Although, in retrospect, when Isobel remarks on Zoe's outfit in Part 1, her line makes a lot more sense if Zoe is wearing her sparkly jumpsuit at the time.)