That is what I understood as well, I passed my B+E in 2011 as thought I was effectively limited by the tow vehicle's capability. However I've just looked up my license online and come across the following:
View attachment 170335
Which implies the 3rd point is incorrect, or more likely the Government's website is wrong.
LOL
They know its wrong ( guess how ) But the official reply was along the lines of yes its wrong, but we have no plans or time scale to fix it.
Mine says the same. I guess they wont ever fix it & are waiting for us all to die & the problem goes away.