The only way that makes since is if you think AOC, Joe Manchin, Joe Biden, and every other politician that caucuses with the Dem party are on the same page and working for the same shit…
Not at all, the lack of party unity is one of the reasons they have done a suboptimal job with this and other things. Nonetheless, the flowchart is true, and you can see it over and over when any major thing happens. 100% of the time? No. Is it very often relevant to folks removed about Dems? Yes, IMO it is. But with absolute sincerity, you are welcome to disagree.