That last sentence just seems so totally out of sync with what they usually say.

The whole reason things like relic quests and roulettes include old content is to ensure that people
do in fact keep running older content, so that it never becomes obsolete. Obsolete content creates a major problem for new players who haven't run it yet, because it gets too hard to find groups for it. So long as older players keep going back to previous content, the newer players get a chance at playing the game.
Wanting to avoid having players go to old content just seems so totally backwards that I wonder if something got lost in translation (or outright
mistranslated, like a missing negative that would reverse the meaning of the sentence).