She explains it towards the end of her story:
Why does brouhaha over Arabic on Viking textile matter? Three reasons
One, context: story likely went viral because of recent events. Charlottesville revealed to all what has long been known among medievalists: that white supremacy uses medieval imagery & symbolism. At Charlottesville we saw medieval banners & chants with Crusader phrases like Deus Vult.
So the Viking Allah textile exhibits what Stephen Colbert once called ‘truthiness’ but is not supported by scholarship. But ‘truthiness’ cannot be enough for news media, especially in this age of accusations of Fake News.
And when medieval & particularly Viking age is used as ideological weapon by white supremacists & scholars are risking careers to fight white supremacist appropriation & not just white supremacists use medieval to further contemporary agendas: same tactic used by ISIS, alQaeda who kill thousands. Then it matters that we get this right. Media can report on diversity of Global Middle Ages w/out trumped-up scholarship. But we need news media to be our allies, consult experts, and get facts right.