That was my thinking, if it passes and becomes law, it has to be passed again to reinstall it, which the president can veto.
My fear is this my end up being a poison pill. I know the 2019 bothers a lot of us but the usual suspects may vote against the bill with this provision in there maybe the 2019 delay was an effort to placate them. a 2 seat majority sucks, better then being the minority but not by much.