Like him or not, Curbishley is highly qualified and available. This alone is a reason for Randy to interview him and seriously consider him. If Randy is serious about the wellbeing of the club he will want to be thorough and listen to what people like Curbishley have to say about their vision for the club - if only to have some point of comparison for other candidates. After all, knowing what you don't want is often as important as knowing what you do want.
At the end of the day, if Curbishley got the job it would be because he was able to articulate and sell a vision for the club and its future that is on the same page as Randy's - and if Randy feels that he is the man to take us forward and a man with whom he can work closely, then it would be a good thing for the club - as long as Curbs can deliver on his vision.
At this point in time though, having an interview merely means he is one of the stronger candidates, not the favourite.