I used to be ashamed of N Ireland's religious bigotry until recently....
It just goes to show that it's largely one's history that makes one what one is.
As for Mr McHugh, it may well be that politically it is just too sensitive still for hism to be seen to be doing this. It's sad, but it's a long road and most people are moving, albeit slowly, in the right direction.
I think someone (possibly in a balaclava) needs to have a word in Mr McHugh's rather antiquated shell-like orifice ...
"Given that Martin shook hands with The Queen, and even with the anti-christ (aka Ian Paisley), it's just possible that you might want to think again ... "
I have no idea what his motives are. I am just speculating.
You don't need to be an expert on recent N Ireland history to see that that might still be a sensitive issue after all these years.
He is typical of sentiment in Northern Ireland, yes they do have long memories, just wait to see what will happen if Brexit forces border control to be reintroduced!