I understand how it came about too. But to be honest, when talking about the royal balcony, my first thought is not MJ. 
It would never ever happen as a joke about Louis for instance. Jobson would literally be sacked as an RR. But it's par for the course continually with H&M.
For me it was the 4 of them (including Arthur Edwards, best pal of Camilla) sat round cackling and laughing about Archie, his birthday, cake and dangling over the balcony.. Not just the balcony bit, all of it. Not violence (although I can understand how that would be thought of). 4 adults cackling with jokes about a little boy. That's it for me. Horrible.
Why don't they move on to Louis and take the piss and have a good old laugh about him too? After all, fair's fair.