In anticipation to the CJEU's ruling in 'C-621/18 Wightman and others' about the revocability of the notification of Article 50 TEU this papers presents the reasons why the proposed interpretation by Advocate General Campos Sanchez-Bordona could lead to the 'casualisation' of Article 50 against the telos of this provision. The paper argues that the CJEU's will follow a formula that does not preclude the revocation of the notification but which at the same time minimises the risk of turning Article 50 into a political/negotiating arrow in the quiver of the departing MS.