Power transfers IMO is the reason why and we have seen that Republicans go way harder with the shit they are willing to push through when they have the power.
So changing some shit just because democrats will have the power at the moment have to remember at some point republicans will have that same power and they are willing to do shit with that power to get what they want that democrats wouldn't even think about doing.
It's the same shit democrats did a few years ago with the nuclear vote or some shit like that. They used it and once republicans got that power and used it the democrats realized how much they fucked up using that tactic.