"Realizing that the Martha/Mickey pairing would have worked if they had been in CoE, I'm giving RTD a pass on that one so long as it was already filmed by the time they didn't renew. If RTD knew and didn't bother to rewrite 30 seconds of script, then again its lazy and a slap to the audience."

I have to admit they do have chemistry, but it still felt kind of lazy like they were the only two left of the Doctor's crew so why not put them together so we don't have to both with separate goodbyes.