Besides, bear in mind that while there are two male Khajiit who have quests and so could fall under the default conditions for marriage, there are no female Khajiit that have quests and so no legitimate means to rope them into marriage.
This is something I feel should have already been addressed/fixed by now.
Also, though I didn't bother quoting this part, it makes more sense to fly out the voice actors to record 20 lines than it does 5. All of that is expensive, and I wouldn't want to bother doing it for something that would take 3 minutes to wrap up when you're paying by the hour.