Please take more care on such source's reliability and ask yourself how much likely is such a claim especially since all we know speaks against it and all reliable posters contradict such ideas?
IMO in any way the final reason for such a claim is fan-boyish wishful thinking in the same ways certain members once claimed, the J-20 can fly at Mach 3, are using already from day one operational WS-15 with a thrust of +240kN.
As such, forget it ... and probably do next a bit of research on your own like would such a monster missile fit in a VLS or not before trying to defend it with even more fantastic arguments.