Even if true, it makes no difference.
Nico will not admit that to the FIA, so no punishment. Merc will not admit that to the FIA, so no punishment. Met will not punish the driver as they want the points and a WDC, so really Nico gets off Scott-free.
If true, of course. Although Nico and Merc are deafening with their silence.
Tell you one thing though: I am going to make it a rule in my life that I will never, ever annoy Toto Wolff. Menacing!