Interesting, especially the part about the financial situation for coal power. But there is a serious weakness: it presents the false dichotomy between "keeping nuclear and coal, no more renewables" and "reducing nuclear while increasing renewables". There's no mention of the (obviously better) option 3: "reduce coal while increasing renewables, keep nuclear the same".
And what I said about coal power is factually correct. Germany installed 11 GW in new coal power plants from 2011 to date. When you crunch the numbers, that gives you a production of ~80 TWh per year from the new coal plants.
Now, as the article you linked points out, this has replaced old coal plants being phased out. This means their argument of "nuclear power was old and needed replacing, so we might as well just scrap it" could be equally applied to coal.