I think you are correct. I have had colleagues calling "speed" when the speed goes between Vref+5 and Vref.
I even had an instructor write up on a line check that I had allowed the FO to fly at Vref-5 when he meant Vref+5 minus 5!
In other words, not calling him out for applying the FCTM technique.
Not saying this applies here. Just sayin.