BZZZTTT! The FAA just raised the top age for airline pilots to 65. There is no age limit for commercial pilots/flight instructors/air taxis/ag fliers. This would not have happened had this article been true.
I don't see what one has to do with the other.
Also, independently, and perhaps a bit more relevant to your comment, I doubt that airline pilots are best measured by the speed of their reflexes. They can be a couple of a tenths of a second slow; what matters is that they are right, the chances of which experience in the cockpit can improve.
I don't mind flying behind an old pilot, so long as they are a good pilot.