As I understand it, Cuomo does NOT want the Democrats to take control of the senate. If they do, they will flood him with whacky left-wing legislation, and he doesn’t want to either risk his reputation by signing it, or going to war with his own party by vetoing it. If the GOP maintains control, the Republicans can be blamed for blocking the leftist agenda.
Sometimes it IS better to let the screwballs have full say.
That way the meat of the beast can be pointed out and we can say, “See, told ya.”
Except that the damage they do is then permanent as nobody will actually try to undo it.