I remember correctly that the episode alluded to something to the effect of them getting Superman instead, but they weren't interested.
Just checked the script, no mention of Superman. It was Nigel who wanted Lois dead - Mazik didn't care one way or another about killing Lois. Mazik had promised to release M & J when Clark stole the jewels, but then he reneged on his promise and asked Clark for more.
c.
