I know of two red jackfruit trees in au but only tasted from one tree and it was really good.
Idk about those varieties but it’s probibly some random varieties that someone named themselves after getting some seeds of another red hetrophyllus.
IMOE A. Hetrophyllus come true to type most of the time, atleast according to my senses, smell, sight etc.
So those reds are probobly orininally from Indian stock, the home land of Jackfruit. Lots of people tend to name things to increase the fictional value in order to increase profit margins.