Trump frequently attacks and mocks political enemies on Twitter, and previously went after Thunberg in September, though his Thursday morning broadside was still jarring coming from a sitting US president against a teenager.
Source:CNN Politics
I wonder whether the word "though" here is used appropriately.
And can I use "coming as it did" to replace "coming"? If I can, does "as it did" mean emphasis, namely "as it did" emphasizes the word coming?