Ref italics: Not true- Due to the nature of high-speed airflow (air is actually a gaseous liquid), the chamber of an engine designed/modified for high rev efficency (increased cam duration/overlap, head porting, inlet manifolding etc) will acheive greater than 100% VE as the intake air continues to ram into the cylinder due to inertia, after the the piston has passed BDC.
Even old OHV 2-valve engines can easlily achieve 110-115% VE when suitably modified for racing. I don't have the figures, but I suspect an F1 engine would be a bit higher again.