I find it hard to believe that W shouting at H scared him - I mean, Harry was an army officer, he got through sandhurst where they don’t wrap you up in cotton wool, and he fought in wars where he was at risk of being shot / killed so I do find it a stretch to believe that a raised voice or two caused him significant psychological harm.
fact is, in the US (which is now their primary target) H&M are seen in a favourable light - that won’t care what we in Britain are saying, overly much, unless they can use it to feed into their ‘victim’ persona and script that sells so well in the USA.
(and as an aside, where a newspaper quotes ‘a source’ without giving a name, that source exists - failure to have a source on record would leave the newspaper open to a libel action so the lawyers working for the paper would be all over this story like a rash, checking the sources do actually exist)