Hoya sp. MT-02 Went Years With No Flowers and Now Is a Blooming Machine!

Hoya sp. MT-02 first flowered in January 2019 and has since become a blooming machine. At one point I had five peduncles in flower and two others in bud. This is just crazy, and it is has two possible causes. One the plant had to be five years old in order to flower, or it is the RO water; I’m betting on the water.