No sympathy for the devil.
If they would truly answer that reporting the level of grief outweighs the considerations of not intruding into it, something that the PCC code makes clear should always be approached sensitively, then they should make that case themselves. More likely is as is so often the case, should any paper even dream of reporting on the private life of a fellow editor, there would soon be phone calls a plenty and threats flying, with both sides usually backing down. Hence why the tabloids didn't report on Rebekah Wade (as was) splitting up with Ross Kemp, let alone the employment tribunal finding that Andy Coulson bullied and unfairly dismissed Matt Driscoll from the News of the World.
However Paul Dacre and the editors at the Mirror and Star defended it to themselves, they must have seen just how distasteful it was to fill all but their entire front pages with the image of Mick Jagger in such obvious distress. The Sun, perhaps stung by the criticism it received following the death of Reeva Steenkamp, having decided an image of the model appearing to undo her bikini top was the best way to illustrate the news, opted for a far smaller inset of the image used by the others, still obviously objectionable but not on the same scale as using it to fill the page.
It does of course raises questions about what now is beyond the pale. The extremely long lens shots of the People's Kate sunbathing topless were, but the Sun decided Harry buck-ass naked in a hotel wasn't. The tabloids had an attack of the vapours when an Italian documentary used the images of Princess Diana lying mortally injured in the back of the Mercedes, despite having arguably contributed to the crash, yet don't think an ashed faced rock star learning of a personal tragedy deserves the same protection. This isn't about Leveson, as you shouldn't need a judge to tell you to feel the most basic compassion and human empathy. It's about a tabloid press that has never set itself a boundary it hasn't subsequently broken.