Should Labour, in the final analysis, be seen to have in effect collaborated or at least stood by motionless as the Tories go hell for leather for a Hard Brexit, then its perceived waving through of Article 50 will be interpreted as a colossal act of cynicism, which many of the 48%, and indeed many loyal Labour voters, may not be able to forgive.
Labour will also seek to ensure the Government publish a proper plan - ideally a White Paper - before Article 50 is triggered. The House of Commons has already voted overwhelmingly for a Labour Opposition Motion that called for the Government to publish a Brexit plan, and the Prime Minister should be in no doubt that we do not consider a 45-minute speech to be any substitute.
Ultimately, though, we will only see the cultural shift we need on victim's rights when they are enshrined in a Victim's Law. This would be a powerful break with the current piecemeal approach and help tackle one of the most fundamental problems in our criminal justice system: a lack of faith among victims that they will be supported, listened to and treated fairly.
Parliament has the opportunity to re-balance our law in this difficult and sensitive area. Unless we revert to a position of a blanket prohibition of any assistance even for those with a voluntary, clear, settled and informed decision to end their lives, we have to recognise and accept their desire for professional help from medical practitioners rather than amateur help from loved ones.