Movers are NOT part of the crew. They are PAX.
Afraid you are wrong there - if you check the Transops you will see they are classed as Support Crew. The same as GE/SVC and ATSy.
And I would most certainly NOT allow movers on my aircraft to direct pax in the event of an emergency evacuation, as they are not qualified to do so
I was on a VC10 where we had to jump down the emergency chutes. Who was at the top directing the pax to jump? The MAMS Fg Off and Sgt. The ALM "fell" down the chute as soon it opened.
As for the Tw@t who started this - think the @RRSE site would be more appropriate for you