I read a report today that said the materials used on the outside of the building included thermoplastic polyurethane, other plastics and an aluminum composite, all of which will burn. Because they will burn so easily all these materials were banned for such use in 2013. This was after the height of the building boom here which means those materials were widely used in construction all over the city....so the same thing could happen again. He estimated these materials are on the outside of about 70% of skyscrapers in Dubai.
Since a lot of pilots and cabin crew live in these buildings I think you could make the case there's at least an indirect relevance to an aviation forum.
No cause identified yet (or at least not admitted to in public).