This attitude towards online gambling does not surprise me at all and it won't probably change during Trump's presidency. All industry's magazines - CalvinAyre, Gambling Insider, Vegasmaster and so on - after his election agreed that the new President would not be a friend of the online gambling operators, and the reason is already explained in this article: because traditional casino billionaires are more powerful right now in the US, and the President is - was? - one of them. 
Things are starting to change in a few states but I doubt it that they'll change on a nation-wide scale for now.