The bill originated in Senator Lara's committee, Appropriations. That's where it was crafted, where it was read three times, and where the place-holder components to it, financing, were not resolved. What do you think Appropriations does? What do you think it has jurisdiction over? Which committee develops financing language? Ask yourself those questions before you pretend I'm missing something (hint: one thing I know is legislative arcana).
What he did was garbage, and what Nurses United's president is doing is garbage too. He created a showboat bill with no financing in it, in spite of that task being his committee's role, then he and his Senate colleagues passed it off to the Assembly. He wanted the credit for single payer, but not the hassle for explaining a 15% payroll tax increase, one of the ideas being floated for it, or the hassle of explaining to voters why several previously passed ballot propositions would have to change in order to make the bill work. You know why? Because he'd likely lose his run for insurance commissioner.
I actually feel sorry for the Speaker. At best, Lara adopted a crap strategy, at worst, he's trying to dupe people for his next run for office. Serious legislation doesn't get done that way. Hell, even Republicans have financed their healthcare (crappy) proposals in the competing bills from the House and Senate.