In one sense 0-bama is correct. By so thoroughly suppressing the economic engine for 8 long years it really WAS easy for President Trump to get it fired up again, although I seriously doubt anyone else could have done it in such a spectacular and all encompassing manner.
There is an economic principle about deferred spending exploding at the beginning of an upturn, which makes the beginning of an upturn really strong. There are elements of that in the GDP numbers, but there’s more to it this time. It’s not just that there was a downturn in the normal cycle, but that America was becoming a place to remove capital, not invest it. Trump reversed that, and that would also cause GDP to rise substantially.