Günter Grass and Greville Janner: Compare and Contrast?

At least I think that's what today's Jewish Chronicle editorial has done without actually naming Greville Janner.  See this:

He was only a Nazi

Gunter Grass may have had literary merit but he was also a Nazi, having served proudly and freely as a member of the Waffen SS. This fact was simply swept aside as inconvenient by many of the arts establishment in their gushing tributes. The BBC’s arts editor, Will Gompertz, briefly referred to his Nazi past as having caused “controversy” before returning to Grass’ literary magnificence. Had he been found to have been a paedophile, one imagines the tone would have been rather different.[my emphasis - obviously]

Now if the JC had Lord Janner in mind then I can think of lots to contrast with Günter Grass and not a lot to compare but what on earth was the JC thinking?