Yes. Because that never happened.
First, because the best-selling WotC product is Magic the Gathering, which at its worst sells an order of magnitude better than D&D at its best. Pathfinder's total lifetime sales are less than what MtG likely pulled in during this quarter.
Second, the best selling Pathfinder products barely outsold D&D's average product. Pathfinder tied with D&D when they released the excellent Advanced Player's Guide while D&D released Dark Sun. Once Essentials came out Pathfinder fell back to #2 again. After to that Pathfinder pulled ahead when it was the unpopular Heroes of Shadow versus the very popular Ultimate Magic. The worst Pathfinder products of the era were still crushed.