It is a nice demonstration of an impact of a fairly mild unexpected drop in generation. Renewables, as things stand, are that, all the time, on steroids.
You don't need as much storage if you have nuclear and you can't compare the two without accounting for (potentially weeks or months of) storage. "Building out storage" is not an unavoidable expense that just happens automatically, it's a requirement to have a reliable greed that is mostly based on non-dispatchable renewables, and thus a part of their cost.
Seeing how you outright ignore this point, I suspect you are arguing in bad faith.