Ya know, I can understand why Marvel ignored the clone saga. Ben was an awesome character, IMO, but the plotting and story telling that surrounded him left oh so much to be desired.
Now, digging him up again and teasing the idea that he might be a murderer? It hardly seems worth the effort, especially given all the time they spent burying Ben in the first place. True or false, it just seems to be written to pintlessly offend Ben fans.
Also, that stance isn't really correct. If anything, Ben's moral stance should be stronger than Peter's. Ben, after all, didn't have it constantly tested by Green Goblins, Sin-Eaters, etc.