It is the case, but you can precede it with the 2nd category ascent Pas de Soulombrie (9.5 km @ 4.8 % with a 3.9 km @ 7.4 % section in the middle of the ascent and 800 m @ 11 %). But the descent is quite narrow.
Also when newbie tracers want to include the Plateau de Beille, they usually...