I've only grown lemon drop, so i can't tell if there's a difference.
But maybe like it is suggested in the article above, there could be different seed sources (this pepper is grown a lot in Peru, so there's surely some little variation depending on regions/growers).
"Commercial seed purity varies greatly, so it is possible to see wide variation not only in pod shape and size, but also in the all-important taste. The âAji LĂmoâ seed I grow and offer through the Seed Savers Yearbook was collected by Texas pepper specialist Jean Andrews, who found a supply of the peppers at an open market in Arequipa, Peru."
So, there may be some little differences if the sources are different. Maybe the different name is related to different source, or maybe not. Maybe they both come from the same pods...
Hard to tell now i think.
But at least they have the same origin. If you would go to Peru and grow some from a market there, you'll surely have a starin with little differences than those that are commercially sold.