Yes, you are right. While vo2 has been remarkably predictive (its crazy how accurate those Daniels tables are) in my MS and HS athletes, as us older folk are finding out... not so much. Which...is weird, you would think the endurance (FTP, LT measures) would hang on better than VO2, but for me the opposite. But its no secret the cardiovascular system has some issues with maintaining power for distance after...a certain age. You really have to focus on maintaining endurance too.
