He wasn't reporting it to the team,if he wanted to do that,he could have done after the session in the debrief......this was to bring it to the FIA's attention....because we need someone running to the principal every 5 mi utes in this sport,to show the level of maturity we deal with here.
Maybe he was just overjoyed to be close enough to Norris to see it that he couldn't resist calling it out.
So was the Merc, but that's fine, they will fail floor / skid block inspection if this happens in the race