Biden, BBB, and Manshin

My question: Why did Biden speak out about Manshin, (finally), over the weekend? As we learned from the Republicans, late Friday is when you do things you don’t want covered in the news. Biden’s rebuke (I haven’t seen/read the actual), seems timed to keep it under cover - which makes no sense. Why hide when you’re being strong? You just look indecisive (check), weak (check), and uninterested (check) in your own agenda. So, so, spineless!