Don’t waste your time trying to explain it - it’s a lie. There are a hundred ways the Democrats lie about the economy. The most common way is to simply falsify the number and then quietly revise it the following quarter.
They do that with quarterly jobs and growth all the time. They report a favorable number and the fake news makes a big deal about it - then they revise it downward the next quarter and the fake news buries the story.
As simple as that - they are liars.
The propaganda media does the exact opposite when Trump or another Republicans in office. They report poor financial numbers for a given month and then later, in the small print, they revise the previous month upward.