European Union (Amendment) Bill

The Government's main argument on the passerelle clauses, with which the amendments are concerned, seems to be that they are all very technical, and therefore not that interesting, and will not be used in any case. Is that not the classic tactic that has been used over the entire 50 years of the European project to disguise major constitutional change and prevent it from being properly scrutinised by the people whose rights are being removed by proposed changes?